Military Armored Vehicle, Tank, and Tank Component Manufacturing (U.S.)

NAICS 2022 code 336992 — the plants that build America's combat tanks, armored fighting vehicles, and the specialized parts that go into them. NAICS (the North American Industry Classification System) is the standard code system U.S. statistical agencies use to sort businesses by what they make.

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1. Overview

This is the industrial base that produces heavy ground combat power: the M1 Abrams main battle tank, the Bradley and its family of tracked fighting vehicles, the Stryker and other armored carriers, and the amphibious and armored trucks that move troops under fire. It is a small industry by headcount but strategically outsized — a few large plants whose output shows up in national-security headlines and allied arms deals.

Why an investor should care: demand is almost entirely government, revenue arrives as multi-year contracts with long visibility, and the business is highly cyclical with defense budgets and threat perceptions. The war in Ukraine, European rearmament, and a U.S. Army now rethinking how much heavy armor it wants have all put this niche in motion.

Ways in. There is no pure-play U.S. "tank stock." The work lives inside large diversified defense primes and foreign-owned subsidiaries. Public-market investors reach it mainly through General Dynamics and, more diluted, Oshkosh, Textron, foreign-listed BAE Systems and Rheinmetall, and component suppliers like Leonardo DRS. Private-market investors reach it through private-equity-owned primes (AM General), the deep supplier tier, and the emerging armor-protection and autonomy startup scene.

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2. What it is and how it's structured

Scope. NAICS 336992 covers establishments that (1) build complete military armored vehicles and combat tanks, (2) make specialized tank components, and (3) manufacture self-propelled weapons — including factory rebuilding of tanks [1]. The work includes tracked and wheeled combat vehicles, armored personnel carriers, recovery vehicles, self-propelled artillery, hulls, turrets, and specialized components. Census explicitly excludes non-armored military utility vehicles, which it assigns to light-truck and utility-vehicle manufacturing [2]. Note the disambiguation: "tank" here means a combat tank, not a storage tank (steel storage tanks are a different code, 332420) [1].

What it excludes (adjacent NAICS codes):

• Heavy-duty tactical trucks → 336120 (Heavy Duty Truck Manufacturing) [1]
• Military aircraft → 336411; military ships → 336611; guided missiles → 336414 [1]
• Guns/artillery and ordnance → 332994 (Small Arms, Ordnance, and Ordnance Accessories) [1]

The line between "armored vehicle" and "tactical truck" matters: some wheeled programs (like the Humvee successor) are truck-based and can land partly in truck codes, which is one reason this industry's federal receipts understate its footprint (see Section 3). For example, at least one JLTV delivery order was classified under NAICS 336212 rather than 336992 — strong evidence that "armored vehicle market" and "NAICS 336992" are not coextensive [3].

How the work is done. The production model is closer to low-volume aerospace or shipbuilding than to commercial automobile assembly. A prime contractor develops or integrates the vehicle; fabricates and welds heavy armor structures; installs engines, transmissions, tracks or axles, suspension, weapons, sensors, communications, power systems, and protection systems; conducts destructive and non-destructive inspections; and completes automotive, ballistic, and government-acceptance testing. The Army's Joint Systems Manufacturing Center in Lima, Ohio illustrates the model: the government owns the plant, General Dynamics Land Systems operates it, and the facility fabricates Abrams vehicles, Stryker hulls, armored personnel-carrier hulls, and gun-station turrets using armor steel, aluminum, titanium, and composites [4].

New production is only part of the business. Because armored platforms remain in service for decades, OEMs also earn revenue from resets, upgrades, engineering changes, spares, field service, training, and depot partnerships. BAE Systems, for example, describes itself as lifecycle OEM and sustainment provider for the Bradley, AMPV, M109, M88, ACV, M113, and AAV families [5].

Ownership mix — unusual. Unlike most industries, there are essentially no small independent owner-operators building complete vehicles. The structure is:

• Large public primes / their divisions: General Dynamics Land Systems (a segment of General Dynamics), Oshkosh Defense.
• Foreign-owned U.S. subsidiaries: BAE Systems Inc. (parent: BAE Systems plc, UK), Leonardo DRS (parent: Leonardo, Italy) — these operate under U.S. security arrangements to hold classified work.
• Private-equity-owned: AM General, owned by KPS Capital Partners since 2020 [6].
• A government-owned plant: the Joint Systems Manufacturing Center (the Lima, Ohio tank plant) is U.S. government-owned, contractor-operated (GOCO) by General Dynamics — every U.S. Abrams is assembled there [4].
• A long supplier tail: engines, transmissions, optics, armor, and electronics from firms large (Honeywell, Allison Transmission) and small (private machine shops). The supplier tier is less concentrated than the prime tier but contains difficult-to-replace niches: armor plate and composites, large castings and forgings, tracks, thermal sights, fire-control systems, and active-protection systems. Qualification, technical-data rights, security requirements, tooling, and low production volume create high switching costs even where a component has more than one nominal supplier.

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3. How big it is

U.S. federal statistics for NAICS 336992:

The HHI (a standard concentration gauge; above 2,500 is "highly concentrated") of about 2,289 plus a top-4 share of 85% confirm this is a tight oligopoly: a handful of primes plus many small parts suppliers [7].

The undercount caveat — important here. The ~$6.9 billion receipts figure is a legitimate measure of what these specific plants ship, but it materially understates the industry's economic weight for three reasons. First, the biggest producers are divisions of much larger firms whose armored-vehicle work is folded into parent financials — General Dynamics' Combat Systems segment alone booked about $9.2 billion of revenue in 2025 (though that includes European and non-336992 lines) [10]. Second, wheeled tactical trucks and many subsystems are classified under other NAICS codes. Third, demand is monopsony — one dominant buyer (the U.S. government) plus allied governments — so this is not a market you can size from private-sector receipts the way you would a consumer industry. For global scale, defense market researchers put the worldwide armored-vehicles market at roughly $52 billion in 2025, but that spans many codes and countries, not just U.S. 336992 [11].

A categorical point: NAICS 336992 is an establishment classification, not a complete armored-vehicle product market and not a list of companies. Census assigns an entire physical establishment according to its major activity, while a multi-plant defense company may have facilities in several NAICS industries [12]. Segment revenue, procurement accounts, contract NAICS codes, and Census industry shipments consequently measure different things; combining them into a single "U.S. armored-vehicle market size" would be misleading.

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4. The investable universe

There is no U.S.-listed pure play. The cleanest large-cap proxy is General Dynamics; the rest are diversified or foreign-listed.

Public companies

Major private / other owners

• AM General — private, owned by KPS Capital Partners. Builds the Humvee and, since a surprise 2023 win, the Joint Light Tactical Vehicle (JLTV) under a contract worth up to ~$8.66 billion, contemplating up to 20,682 vehicles, 9,883 trailers, and 174,000 kits [6][21][3].
• KNDS, Hanwha, Patria, Iveco — foreign, often government-linked primes competing for U.S. and allied programs [11].
• Joint Systems Manufacturing Center (Lima, Ohio) — U.S. government-owned tank plant, operated by General Dynamics [4].

Diversified exposure without single-name risk is available through aerospace-and-defense ETFs (exchange-traded funds) such as ITA, XAR, and PPA — but these dilute the armored-vehicle theme heavily.

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5. How the money works

The economics here are unlike consumer manufacturing. The relevant metrics are backlog, contract type, program phase, and sustainment.

One customer, long contracts. Nearly all revenue is government procurement — the U.S. Army and Marine Corps, plus allied buyers through Foreign Military Sales (FMS) (government-to-government deals brokered by the Pentagon) and Direct Commercial Sales (DCS). Programs are awarded as multi-year contracts, so funded backlog is the key visibility metric: it tells you how much revenue is already booked. General Dynamics ended 2025 with $27.2 billion of Combat Systems backlog, after receiving $9.2 billion of combined wheeled- and tracked-vehicle awards for international customers [10].

Contract type sets the margin. Development and engineering work is usually cost-plus (the government reimburses costs plus a fee) — lower risk, lower margin. Production is often fixed-price, where the maker keeps savings but eats overruns — higher risk, and a real hazard when inflation hits a multi-year deal. General Dynamics' Combat Systems segment runs a 14.4% operating margin [10]. Notably, $8.131 billion of Combat Systems' $9.246 billion in 2025 revenue was fixed-price, underscoring the segment's cost-execution exposure [10].

Revenue recognition. Revenue on long-term defense contracts is generally recognized as work progresses, using costs incurred relative to estimated total cost. Contract cost includes labor, material, and overhead. Thus reported revenue can rise as production activity rises even before a finished vehicle is delivered [10].

Program phases are a staircase. A program moves from EMD (engineering and manufacturing development) to LRIP (low-rate initial production) to FRP (full-rate production), then decades of upgrades and rebuilds. The real annuity is sustainment: the Abrams entered service in 1980, and today's tank revenue is upgrades (SEPv3, SEPv4, the next-gen M1E3) and refurbishment, not brand-new hulls [22][23]. Recent Abrams awards illustrate the mix — e.g., a five-year support contract worth up to ~$716 million [24].

Warm lines and political economy. Because building a tank plant from scratch is nearly impossible, keeping production lines "warm" is itself a goal. Congress has repeatedly funded Abrams work the Army did not request to keep the Lima plant running, and FMS deals (Poland, Taiwan, Australia) help fill lulls in domestic demand [25][26].

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6. What drives demand

• Defense budgets — U.S. and allied — are the master switch. Ground-combat procurement lines in the annual defense budget set the pace. The Army's fiscal 2026 request included $2.887 billion for Weapons and Tracked Combat Vehicles, versus $3.689 billion under the preceding continuing-resolution baseline [27].
• Threat environment. Russia's invasion of Ukraine triggered European recapitalization (Germany's multi-billion-euro Boxer and infantry-fighting-vehicle buys, Poland's Abrams order) and created a U.S. replenishment obligation: the U.S. shipped 900-plus M113 carriers to Ukraine, and is now buying additional Armored Multi-Purpose Vehicles (AMPVs) to backfill — about 50 units for ~$250 million in the FY2026 plan [28][29].
• Fleet obsolescence. Aging platforms (M113, Humvee, Bradley) create modernization cycles worth decades of work. Demand is supported by fleet age and modernization rather than wholesale fleet expansion.
• Doctrine and technology shifts. Lessons from Ukraine — cheap drones and loitering munitions killing expensive armor — are reshaping demand toward active protection systems (APS), counter-drone kit, and lighter or uncrewed vehicles, while raising hard questions about the future of the heavy tank. The Army's M1E3 approach calls for lower weight and logistical burden, integrated protection, and modular open-system architecture so technology can be upgraded faster [30]. The Army's 2026 Golden Shield demonstration linked autonomous sensors and effectors across armored formations using an open architecture [31].

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7. Regulation

This industry is not "regulated" like a utility; it is governed by being the government's supplier.

• Acquisition rules: the Federal Acquisition Regulation (FAR) and its defense supplement (DFARS) dictate how contracts are competed, priced, and audited.
• Export controls: the International Traffic in Arms Regulations (ITAR) and the Arms Export Control Act govern FMS/DCS sales, which need State Department and often congressional approval. Foreign sales may also require local workshare, offsets, technology transfer, or in-country production, reducing the portion of an order captured by U.S. factories [10].
• Foreign ownership: because major producers (BAE Systems Inc., Leonardo DRS) have foreign parents, they operate under Special Security Agreements / proxy boards overseen by the Committee on Foreign Investment in the United States (CFIUS) framework to hold facility clearances.
• Domestic content and cybersecurity: Buy-American provisions, priority ratings for defense orders, and the Cybersecurity Maturity Model Certification (CMMC) requirements apply down the supply chain.
• Small-business policy: the SBA sets the size standard at 1,500 employees for this code [9]. Because the primes are far larger, small-business set-asides mostly touch the component tier.

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8. Competitive dynamics and consolidation

Post-Cold-War consolidation left a concentrated field. General Dynamics Land Systems and BAE Systems (which absorbed United Defense — the Bradley/Paladin/M113 lineage — in 2005) anchor tracked combat vehicles; Oshkosh and AM General anchor tactical wheeled vehicles. Barriers to entry are enormous: capital intensity, security clearances, decades of program experience, government-owned tooling, and a single dominant customer.

Two dynamics keep it interesting. First, foreign primes are pushing in — Rheinmetall (via American Rheinmetall), KNDS, and Hanwha are competing for U.S. programs and for allied buys that historically favored American firms [11]. General Dynamics Land Systems and American Rheinmetall are the current prime contractors in the XM30 Bradley-replacement design and prototype phases [32]. Second, individual competitions are winner-take-most and can reshuffle the field: AM General's 2023 upset of incumbent Oshkosh for the ~$8.66 billion JLTV recompete showed how a single award can revive or gut a company's ground-vehicle business [21][33].

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9. Risks

• Program cancellation and budget risk. The Army's 2025 Army Transformation Initiative (ATI) directive to "cancel or scale back ineffective or redundant programs" killed the M10 Booker light tank after more than $1 billion spent and 26 vehicles delivered (the low-rate contract had contemplated up to 96 vehicles), and led the Army to hold off on finalizing the XM30's production milestone [34][35][22]. AMPV procurement was also trimmed in the FY2026 bill [28]. Appropriations arrive annually even when performance extends for years; continuing resolutions can freeze new production at prior levels; and contracts can be terminated for convenience. The government usually reimburses allowable costs and an appropriate share of fee following a convenience termination, but the contractor loses the future production stream and expected learning-curve profit [10].
• Single-customer concentration. One buyer's doctrine shift can erase a market overnight.
• Technology disruption. Drones and loitering munitions may lower the battlefield value of heavy armor — a structural threat to the tank thesis, even as it creates new demand for protection systems. The larger risk is an unfavorable mix shift: fewer expensive crewed platforms and more inexpensive unmanned or commercially derived systems.
• Fixed-price and inflation risk on multi-year production contracts. Supplier disruption is particularly damaging where only one or two qualified sources exist [10].
• Labor constraints. Heavy armor welding, large-envelope machining, systems integration, and defense engineering require specialized training and qualification. A shortage raises recruiting, training, and overtime costs and can delay deliveries [10].
• Political and protest risk. Revenue is lumpy and politically driven; contract awards draw bid protests and recompetes.
• Export dependence. With soft domestic demand, makers lean on FMS — exposing them to geopolitics and approval delays.

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10. How to invest and the outlook

Public routes.

• Best large-cap proxy: General Dynamics (GD) via its Combat Systems segment — but you also buy business jets, submarines, and IT services [10].
• Diversified U.S. exposure: Oshkosh (OSK) and Textron (TXT), each with a modest defense-vehicle slice [13][15].
• International armor: BAE Systems (BAESY) and Rheinmetall (RNMBY) as ADRs/OTC lines — the purest large armored-vehicle bets, but foreign-listed [11].
• Supply chain: Leonardo DRS (DRS) for optics/electronics, Allison Transmission (ALSN) for drivetrains, Honeywell (HON) for tank engines — each a small slice of the parent [18][19][20].
• Baskets: defense ETFs (ITA, XAR, PPA) for diversified, theme-diluted exposure.

Private routes. The private-equity playbook is live — KPS's turnaround of AM General shows how buyout capital enters via distressed or non-core defense assets [6]. Other entry points: the deep component and armor-plate supplier tier, long-tail sustainment and rebuild shops, and venture-stage companies in active protection, counter-drone, and autonomy — arguably where the growth is shifting. The diligence issue is whether the supplier owns genuinely difficult-to-replace qualifications and technical data or is merely a capacity provider exposed to one production lot.

Near-term drivers (forward-looking). The swing factor is the tension between two forces. On the demand side: Ukraine-driven replenishment (AMPV and others), allied recapitalization (Poland's Abrams deliveries running into 2026, European fighting-vehicle buys), and continued Abrams upgrade/M1E3 work support the base [22][23][26][28]. On the risk side: the Army Transformation Initiative is actively reshaping the portfolio toward lighter, uncrewed, and drone-centric systems and away from some heavy-armor programs, and the XM30 (Bradley replacement) downselect toward roughly 2027 low-rate production is the next large tracked-vehicle prize — and the next place a single award could reset the competitive map [35][36]. The secular trend is toward more electronic and software content per vehicle: value can migrate from steel and passive armor toward sensors, power management, software, and protection subsystems even if complete-vehicle quantities remain flat. Expect the value to keep migrating from new heavy platforms toward upgrades, protection systems, and the software/electronics that make older hulls survivable.

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Sources

1. NAICS Association, "NAICS Code 336992 — Military Armored Vehicle, Tank, and Tank Component Manufacturing" (industry definition and cross-references), 2022. https://www.naics.com/naics-code-description/?code=336992
2. U.S. Census Bureau, 2022 NAICS definition for 336992. https://www.census.gov/naics/?details=33&input=33&year=2022
3. USAspending, JLTV award record (showing NAICS 336212 classification). https://www.usaspending.gov/award/CONT_AWD_W56HZV23F0081_9700_W56HZV23D0008_9700
4. U.S. Army TACOM, Joint Systems Manufacturing Center — Lima. https://tacom.army.mil/jsmc-lima
5. BAE Systems, "Sustainment and Mission Readiness Support." https://www.baesystems.com/en-us/product/sustainment-and-mission-readiness-support
6. KPS Capital Partners, "AM General — Investments," 2020–2025. https://kpsfund.com/investments/am-general/
7. U.S. Census Bureau, 2022 Economic Census, Concentration ratios and firm/receipts data for NAICS 336992 (receipts, firms, CR4/CR8/CR20, HHI), 2022. https://www.census.gov/programs-surveys/economic-census.html
8. U.S. Census Bureau, County Business Patterns (CBP) 2023, NAICS 336992 (employment, establishments, payroll), 2023. https://www.census.gov/programs-surveys/cbp.html
9. U.S. Small Business Administration, "Table of Size Standards" (NAICS 336992 = 1,500 employees), 2023. https://www.sba.gov/document/support-table-size-standards
10. General Dynamics, Form 10-K (FY2025), Combat Systems segment financials ($9.246B revenue, 14.4% margin, $4.970B military vehicles, $8.131B fixed-price, $27.2B backlog). https://www.sec.gov/Archives/edgar/data/40533/000004053326000006/gd-20251231.htm
11. MarketsandMarkets, "Armored Vehicles Market — Size, Share & Industry Forecast" (~$51.6B in 2025; key players BAE, GD, Oshkosh, Rheinmetall, KNDS, Hanwha), 2025. https://www.marketsandmarkets.com/Market-Reports/armored-vehicle-market-6322755.html
12. U.S. Census Bureau, County Business Patterns glossary (establishment classification). https://www.census.gov/programs-surveys/cbp/about/glossary.html
13. Oshkosh Corporation, "Oshkosh Corporation Reports 2025 Fourth Quarter and Full Year Results," BusinessWire, 2026. https://www.businesswire.com/news/home/20260128267726/en/Oshkosh-Corporation-Reports-2025-Fourth-Quarter-and-Full-Year-Results
14. StockAnalysis, "Oshkosh (OSK) — Revenue ~$10.4B," 2026. https://stockanalysis.com/stocks/osk/
15. Textron Inc., "Textron Systems Awarded $450M Advanced Reconnaissance Vehicle (ARV) Pre-Production Development Award by U.S. Marine Corps," 2026. https://investor.textron.com/news-releases/news-details/2026/Textron-Systems-Awarded-450m-Advanced-Reconnaissance-Vehicle-ARV-Pre-Production-Development-PPD-Award-By-U-S--Marine-Corps-2026-yTtOyaT3L6/default.aspx
16. BAE Systems, "2025 Full Year Results" (AMPV 500th delivery, 3,000-vehicle Army plan). https://www.baesystems.com/en-us/article/2025-full-year-results
17. Rheinmetall, Annual Report 2025 (XM30 team composition). https://www.rheinmetall.com/Rheinmetall%20Group/Investor%20Relations/Ver%C3%B6ffentlichungen/Pr%C3%A4sentationen%20und%20Berichte/2026/GB/Rheinmetall-Annual-Report-2025.pdf
18. Leonardo DRS, Inc., Form 10-K (FY2024) and 2025 results (revenue ~$3.6B; ~79% from DoD; Abrams/Bradley electro-optical sensors), U.S. SEC, 2025. https://www.sec.gov/Archives/edgar/data/1833756/000162828025009248/drs-20241231.htm
19. Allison Transmission Holdings, Form 10-K (FY2024) (tracked-vehicle propulsion for Abrams), U.S. SEC, 2025. https://www.sec.gov/Archives/edgar/data/1411207/000095017025019379/alsn-20241231.htm
20. Honeywell Aerospace, "Honeywell Enhances AGT1500 Engine Power Pack Configuration for the Abrams Tank," 2023. https://aerospace.honeywell.com/us/en/about-us/press-release/2023/10/honeywell-enhances-agt1500-engine-powerpack-configuration-for-the-abrams-tank
21. Breaking Defense, "AM General wins Army's JLTV recompete, deal valued up to $7.3 billion" (award up to ~$8.6B with options), 2023. https://breakingdefense.com/2023/02/am-general-wins-armys-jltv-recompete-contract-valued-up-to-7-3-billion/
22. Defense News, "Dead on arrival: Army pulls plug on M10 Booker light tank" (and next-gen M1E3 context), 2025. https://www.defensenews.com/land/2025/06/12/dead-on-arrival-army-pulls-plug-on-m10-booker-light-tank/
23. Global Defense Corp, "General Dynamics Awarded Contract to Produce Next-Generation Battle Tank Design (M1E3)," 2026. https://www.globaldefensecorp.com/2026/01/03/general-dynamics-awarded-contract-to-produce-next-generation-battle-tank-design/
24. GovConWire, "Army Awards $716M Contract to General Dynamics Land Systems for Abrams Support," 2025. https://www.govconwire.com/articles/gdls-army-contract-abrams-tanks-support
25. General Dynamics, "GDLS to Provide Abrams Tanks to Poland Under $1.1 Billion Foreign Military Sales Order," 2022. https://www.gd.com/Articles/2022/08/25/gdls-to-provide-abrams-tanks-to-poland-under-foreign-military-sales-order
26. Overt Defense, "Poland Receives Latest Batch of M1A2 SEPv3 Abrams and M88A2 ARVs," 2025. https://www.overtdefense.com/2025/09/23/poland-receives-latest-batch-of-m1a2-sepv3-abrams-and-m88a2-arvs/
27. U.S. Army, "FY26 President's Budget Highlights" ($2.887B for Weapons and Tracked Combat Vehicles). https://www.asafm.army.mil/Portals/72/Documents/BudgetMaterial/2026/pbr/FY26%20Presidents%20Budget%20Highlights.pdf
28. The Defense Post, "US Army to Buy 50 Additional AMPVs to Replenish Ukraine Drawdown" (~$250M; FY2026 cuts), 2026. https://thedefensepost.com/2026/03/03/us-army-ampvs/
29. Defence Blog, "U.S. Army to buy more AMPVs to replace M113s sent to Ukraine" (900+ M113s transferred), 2026. https://defence-blog.com/u-s-army-to-buy-more-ampvs-to-replace-m113s-sent-to-ukraine/
30. U.S. Army, "Army announces plans for M1E3 Abrams tank modernization" (lower weight, modular architecture), 2024. https://www.army.mil/article/269706/army_announces_plans_for_m1e3_abrams_tank_modernization
31. U.S. Army, "1st Cavalry Division tests Golden Shield counter-drone system," 2026. https://www.army.mil/article/291721/1st_cavalry_division_tests_golden_shield_counter_drone_system
32. U.S. Army, "U.S. Army Acquisition Portfolio 2024" (XM30 prime contractors). https://api.army.mil/e2/c/downloads/2024/07/19/ab2038a9/u-s-army-portfolio-2024.pdf
33. Defense News, "AM General unseats Oshkosh to build Joint Light Tactical Vehicle," 2023. https://www.defensenews.com/industry/2023/02/10/am-general-unseats-oshkosh-to-build-joint-light-tactical-vehicle/
34. U.S. Army, "Army to Cease Procurement of M10 Booker Combat Vehicles" (Army Transformation Initiative; >$1B, 26 delivered, up to 96 contemplated), 2025. https://www.army.mil/article/286271/army_to_cease_procurement_of_m10_booker_combat_vehicles
35. Congressional Research Service, "The Army's XM-30 Mechanized Infantry Combat Vehicle (formerly OMFV)," IF12094, 2026. https://www.congress.gov/crs-product/IF12094
36. Army Recognition, "U.S. Army plans initial production of XM30 infantry fighting vehicle to replace Bradley in late 2027," 2025. https://www.armyrecognition.com/news/army-news/2025/breaking-news-us-army-plans-initial-production-of-xm30-infantry-fighting-vehicle-to-replace-bradley-in-late-2027