Small Arms Ammunition Manufacturing (United States)

NAICS 2022 code 332992 — an investor's primer

1. Overview

Small arms ammunition manufacturing is the business of making cartridges and shotshells — bullets, cases, primers and powder assembled into finished rounds — for handguns, rifles and shotguns. In U.S. industry classification, "small arms" means 30 millimeters (about 1.18 inches) in caliber or less [1]. The core product is the cartridge: a case, primer and propellant, with one or more projectiles [2].

For an investor, the appeal is simple: ammunition is a consumable. Unlike a firearm, which a buyer may own for decades, a round of ammunition is destroyed the moment it is used. That gives the industry a recurring-revenue quality that firearm makers lack — every range trip, hunting season, police qualification and military exercise burns through inventory that has to be replaced.

The catch is that this is a hard sector to own directly on the public markets. The industry is highly concentrated, and its two dominant players are either a division of a diversified chemicals company or foreign-held. There is essentially no large, publicly traded U.S. pure-play ammunition manufacturer today. The main listed exposure is Olin Corporation, whose Winchester brand is about a quarter of the company; the number-two producer (the Kinetic Group) is now owned by Czechoslovak Group (CSG), which itself listed on Euronext Amsterdam in January 2026 (Section 4).

Public route: Olin Corporation (Winchester) is the practical U.S.-listed way in; CSG N.V. on Euronext Amsterdam offers broader small-caliber exposure but with European-market considerations; defense primes and aerospace-and-defense funds provide indirect military-side exposure. Private route: the bigger opportunity set is private — private equity, direct ownership, and supplier/distributor positions in a consolidating, capital-intensive industry.

2. What it is and how it is structured

The industry covers establishments primarily engaged in making small arms ammunition and its components: loaded cartridges, shotshells, bullets, bullet jackets and cores, cartridge cases, and primers [1]. Manufacturers produce centerfire rifle and handgun cartridges, rimfire cartridges, shotshells, military small-caliber rounds, law-enforcement ammunition, reloading components and some industrial cartridges such as powder-actuated-tool loads [3].

Production combines high-volume metal forming, explosives handling and precision assembly. Brass or other metal is blanked, drawn, annealed, washed, trimmed and formed into cases; bullets and primer components undergo their own forming operations; final loading inserts the primer, meters propellant, seats the projectile and crimps and packages the round. SAAMI standardizes cartridge dimensions, chamber compatibility, pressure and velocity, but explicitly distinguishes those voluntary performance standards from each producer's proprietary manufacturing specifications [4].

What it excludes (adjacent NAICS codes) [1]:

• 332993 — Ammunition (except Small Arms) Manufacturing: artillery shells, bombs, grenades, missiles, torpedoes, and anything above 30mm. The much-discussed 155mm artillery shells for Ukraine sit here, not in 332992.
• 332994 — Small Arms Manufacturing: the guns themselves (handguns, rifles, shotguns).
• 332995 — Other Ordnance and Accessories Manufacturing.
• Individual hobby reloading/handloading and retail sales are not counted as manufacturing establishments.

Ownership mix. Structurally this is a top-heavy oligopoly with a long tail. A handful of large plants make most of the volume, while dozens of small specialty loaders serve niches (match, hunting, defensive, subsonic). Production also splits across three end markets — commercial/civilian, law enforcement, and military — and a large share of military output is made at government-owned, contractor-operated (GOCO) plants, most notably the Army's Lake City Army Ammunition Plant in Missouri, run by Winchester [3]. Lake City's stated annual capacity is 1.6 billion rounds, but that is plant capacity — not U.S. industry output — and should not be quoted as the size of the national market [5]. That government dimension is important for reading the industry's true size (Section 3).

3. How big it is

Our ground-truth federal figures for NAICS 332992:

That works out to roughly 80 employees per establishment and average pay near $69,000 — a mid-sized, capital-intensive manufacturing base [7].

Concentration. The industry is genuinely concentrated. The top four firms account for 75.4% of receipts, the top eight for 88.2%, the top twenty for 94.2%, and the top fifty for 98.4% [6]. The Herfindahl-Hirschman Index (HHI, a standard measure where higher means more concentrated) is 1,766 [6] — "moderately concentrated" by U.S. antitrust convention (the 1,500–2,500 band).

Undercount caveats. The federal shipments figure understates the industry's real economic weight in two ways. First, a large volume of military small arms ammunition is produced at government-owned plants under defense contracts; much of that value flows through the defense budget rather than showing up cleanly as commercial factory receipts. Second, private market-research estimates of the broader U.S. ammunition market (which layer in importer and retail margins and imported rounds) run higher — on the order of $7.7 billion for 2023 by one estimate [9] — because a meaningful share of cheap "plinking" ammunition sold in the U.S. is imported, not made domestically. So the $5.83 billion is best read as U.S. factory shipments, not total U.S. consumption. This is not an industry of tiny operators being missed by the statistics; if anything the small custom-loader tail is the part least visible in the headline numbers.

4. The investable universe

The defining fact of this industry for investors is how little of it is publicly tradable as a pure play — and how much has moved into private and foreign hands.

Three takeaways. First, the closest thing to a U.S.-listed pure play, AMMO Inc, exited manufacturing in 2025 — its assets are now Winchester's [15]. Second, the number-two producer (Kinetic Group) and several others are now foreign-owned, which puts more of the industry beyond the reach of U.S. public-market investors and under the scrutiny of the Committee on Foreign Investment in the United States (CFIUS), which cleared the CSG–Kinetic deal [10]. Third, CSG's January 2026 listing on Euronext Amsterdam creates a new public route to the Kinetic Group and Fiocchi — though U.S. investors face foreign-market access, currency, withholding, governance and liquidity considerations [12]. Firearm makers Smith & Wesson (NASDAQ: SWBI) and Sturm, Ruger (NYSE: RGR) are publicly traded but make guns, not ammunition, and sit in 332994.

5. How the money works

Ammunition is a volume manufacturing business, so owners make money the way commodity manufacturers do — capacity utilization × unit volume × price, minus input costs — with a few industry-specific twists.

• Consumable, repeat demand. Because rounds are used up, revenue recurs. A shooter who buys one rifle may buy thousands of cartridges over its life. This is the structural attraction versus firearms.
• Input costs dominate the margin. The main raw materials are copper and brass (jackets and cases), lead (cores), and propellant — smokeless powder made from nitrocellulose. Winchester buys copper-based strip, cartridge-case cups and lead under multi-year arrangements priced as a conversion premium over COMEX or London Metal Exchange prices; its propellant is purchased predominantly from one large U.S. supplier, creating supply as well as price risk [3]. Powder is the pinch point: the same nitrocellulose feeds military artillery propellant, so when war demand spikes, civilian powder gets squeezed [17].
• Boom-and-bust pricing. Ammunition prices whipsaw with buying panics. Elections, civil unrest, and fears of new gun laws trigger stockpiling that empties shelves and lets makers raise prices; the gluts that follow compress margins. Fat margins in a shortage, thin margins in a normalization — 2024–25 has been a normalization/price-pressure phase, as Winchester's 2025 results starkly illustrate [3][18].
• Margin volatility. Winchester's segment income margins fell from 16.9% in 2023 ($255.6M on $1.509B) to 14.1% in 2024 ($237.9M on $1.684B) to just 3.9% in 2025 ($67.7M on $1.725B). Olin attributed $58.1 million of the 2025 decline to higher raw-material and operating costs and $42.1 million to lower commercial pricing — additional military and project revenue did not compensate for the commercial collapse [3].
• Three margin profiles. Commercial sales carry the best margins but the most cyclicality. Law enforcement is steadier. Military is high-volume but lower-margin; the Lake City GOCO plant is effectively a management-and-throughput arrangement on government-owned assets. A large portion of government deliverables are fixed-price, so incorrect cost assumptions or inflation not covered by escalation clauses can reduce profitability [3].
• Vertical integration helps. Olin is a chlor-alkali chemicals company, which gives Winchester an in-house edge on brass and chemistry inputs — a cost advantage smaller loaders lack.
• The 11% excise tax. A federal excise tax of 11% of the wholesale price applies to ammunition under the Pittman-Robertson Act, collected by the Treasury's Alcohol and Tobacco Tax and Trade Bureau (TTB) and funneled to wildlife conservation; it is rebated on exports [19][20]. It creates a material wedge between manufacturer economics and retail price.

6. What drives demand

• Civilian shooting and self-defense. The largest swing factor. The Fish and Wildlife Service counted approximately 47.0 million U.S. firearm target shooters in 2021 [21]. Ammunition demand tracks firearm sales, best proxied by the NSSF-adjusted National Instant Criminal Background Check System (NICS) count. Adjusted checks were 15.2 million in 2024 (down 3.5% from 2023) and 14.6 million in 2025 (down 4.1%) — still well off the 2020–21 pandemic peaks [18]. NSSF cautions that checks are not firearm sales — a check may cover used weapons or multiple firearms, while permit-based transactions in some states require no transaction-specific check — but they are directional. Softening firearm sales pull ammunition volumes down with them.
• Hunting. The Fish and Wildlife Service counted 14.4 million hunters in 2022, though methodology changes make direct comparison with earlier surveys difficult [22]. Seasonal, and structurally flat-to-declining with participation trends, but a durable base of demand.
• Law enforcement. Steady institutional purchasing tied to training and qualification cycles.
• Military and allied restocking. The steadiest growth line lately. U.S. and allied demand for 5.56mm, 7.62mm, 9mm and .50-caliber ammunition — amplified by NATO restocking — lifted Winchester's military sales. In 2025, Winchester disclosed multi-year arrangements supporting Dutch and Belgian requirements for 5.56mm and 7.62mm ammunition [3]. The Army's transition to the 6.8mm Next Generation Squad Weapon (NGSW) cartridge, with production standing up at Lake City, is a multi-year demand driver; it requires a new case technology and production system rather than simple conversion of legacy lines [14][23]. Winchester reported $1.331 billion of contractual backlog at January 31, 2026, of which approximately 81% was expected to be fulfilled during 2026 [3]. Investors should not, however, equate the artillery-ammunition boom following Russia's invasion of Ukraine with NAICS 332992: most widely reported shell shortages concern medium- and large-caliber ammunition outside this industry.
• Political and social cycles. Perversely, the threat of gun-control legislation is itself a demand driver, pulling forward panic purchases. This "panic and digestion" cycle is a more important near-term commercial driver than smooth changes in the number of hunters.

7. Regulation

• ATF licensing. Manufacturers need a Federal Firearms License (FFL) from the Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF) — a Type 06 (ammunition) or Type 07 (firearms and ammunition) license. The license costs $30 initially and at each three-year renewal; the real barriers are zoning, explosives and hazardous-material compliance, insurance, safe process design, tooling, working capital, testing capability, distribution access and reputation [19][24].
• Federal excise tax. The 11% Pittman-Robertson excise tax on ammunition, administered by the TTB (Section 5) [19][20].
• Export controls. In March 2020, most commercial firearms and ammunition moved from the State Department's stricter International Traffic in Arms Regulations (ITAR, the U.S. Munitions List) to the Commerce Department's Export Administration Regulations (EAR, the Commerce Control List). Exports still require licensing but the shift eased commercial international sales [25].
• State and local rules. A growing patchwork: California requires background checks to buy ammunition and restricts lead ammunition for hunting; several states levy their own taxes or record-keeping rules. Lead-component environmental regulation is a recurring pressure. State ammunition background-check, age, shipping and direct-sales laws can change channel economics even without banning manufacture.
• Defense procurement. Military contracts add federal acquisition rules, audit, cost-disallowance, repayment, suspension and debarment risk; foreign acquisitions of U.S. producers draw CFIUS national-security review [10].

8. Competitive dynamics and consolidation

This is a consolidating oligopoly. Two giants — Winchester (Olin) and the Kinetic Group (Federal, CCI, Speer, Remington) — anchor the top, consistent with a top-four share above 75% [6]. Barriers to entry are high: ammunition plants are capital-intensive, propellant and primer supply is scarce, and military qualification takes years.

The consolidation record is striking:

• 2020 — Vista Outdoor buys Remington's ammunition business out of bankruptcy.
• 2022 — CSG (Czechoslovak Group) acquires Italy's Fiocchi, including its U.S. plants [10].
• 2024 — CSG acquires the Kinetic Group (Federal/CCI/Speer/Remington) for $2.225 billion, the industry's largest deal [10][11].
• 2025 — Winchester buys AMMO Inc's manufacturing assets for $75 million gross and expands its Oxford, Mississippi plant with a $100 million, ~500-million-round investment targeted for 2027 [15][26].
• 2026 — CSG N.V. lists on Euronext Amsterdam, creating a new public route to the Kinetic Group and Fiocchi for international investors [12].

The through-line is scale, vertical integration, and rising foreign ownership (Czech CSG, German-owned SIG). Small independents survive by specializing, but the volume game belongs to the majors.

9. Risks

• Demand cyclicality. Civilian demand swings with politics and social mood; a normalization from panic-buying peaks (as in 2024–25) pressures both volume and price — Winchester's margin collapse from 16.9% to 3.9% in two years illustrates the severity [3][18].
• Input and supply-chain shocks. The nitrocellulose/propellant bottleneck is the sharpest: Ukraine artillery demand, a 2024 explosion at a Chinese nitrocellulose plant, and China's move to halt nitrocellulose exports to the U.S. all tightened powder supply, forcing makers to source costlier domestic feedstock [17]. Single-supplier concentration (Winchester's propellant source) adds company-specific risk [3]. Copper and lead price swings hit the rest of the bill of materials.
• Production hazards. Primer compounds, propellant and other energetic materials can cause fires or explosions, while lead and chemical use create employee-exposure, waste-treatment and remediation obligations. Olin specifically identifies explosions, fires, toxic releases, workplace injuries, fatalities and unscheduled shutdowns as operating risks for ammunition facilities [3].
• Regulatory and political. Gun-control legislation, ammunition taxes, background-check-for-ammo laws, and lead bans are perennial overhangs; litigation and shifting administrations add uncertainty.
• Product liability. Defects may cause personal injury or firearm damage, and even unsuccessful claims impose testing, recall, defense and reputational costs. Olin expressly lists ammunition and firearm product-liability proceedings among its legal risks [3].
• Reputational / access-to-capital. ESG exclusion screens keep some institutional investors out, and banking and insurance access for the sector can be constrained — a real cost-of-capital risk.
• Military concentration and budgets. The bright spot (defense/allied demand) is also a concentration risk tied to budget cycles, contract timing, and the pace of the NGSW transition [3][14].
• Foreign-ownership scrutiny. With more of the industry foreign-owned, CFIUS reviews and national-security politics become recurring factors [10].

10. How to invest and the outlook

Public routes.

• Olin Corporation (NYSE: OLN) is the most direct U.S.-listed exposure — but it is a diversified chemicals company; Winchester supplied $1.725 billion of Olin's $6.781 billion consolidated 2025 sales (25.4%), so an OLN investor is buying chlor-alkali and epoxy alongside ammunition [3].
• CSG N.V. (Euronext Amsterdam: CSG) owns the Kinetic Group and Fiocchi, giving it broader small-caliber exposure than Olin, but it also owns substantial medium- and large-caliber ammunition, vehicles, defense systems and aerospace assets [11][12]. U.S. investors face foreign-market access, currency, withholding, governance and liquidity considerations. Investors should take care not to confuse Euronext-listed CSG N.V. with Nasdaq-listed CSG Systems International, an unrelated software company.
• There is no U.S.-listed pure-play ammunition manufacturer of scale after AMMO Inc exited manufacturing in 2025 [15]. Firearm stocks (SWBI, RGR) are a related but distinct bet on guns, not rounds.
• For the military thread, broad aerospace-and-defense funds (for example the iShares U.S. Aerospace & Defense ETF, ITA, or the Invesco Aerospace & Defense ETF, PPA) give diversified defense exposure, though ammunition is a small slice of what they hold. No ammunition-specific ETF exists.

Private routes. Because much of the industry — Hornady, Nosler, Sierra and the specialty loaders — remains private, the larger opportunity set is off-market: private equity and strategic acquisitions, direct ownership of independents, and positions in the supply chain (brass, primers, propellant) and distribution. Defense-contractor and component-supplier stakes are an indirect way in. A private investor should distinguish three different theses: owning scalable cartridge capacity, owning a brand and distribution franchise, or owning a constrained component such as primers or propellant — they have different barriers, margins and failure modes.

Near-term outlook (forward-looking). The likely shape over the next few years: military and allied restocking and the NGSW 6.8mm ramp at Lake City provide a steady demand floor and are the industry's clearest growth engine [3][14]; civilian demand keeps normalizing off pandemic peaks, keeping commercial pricing under pressure until inventories clear [18]; propellant supply gradually eases as domestic nitrocellulose sourcing scales, relieving a key 2024 margin squeeze [17]; and consolidation continues, with the majors adding capacity (Winchester's Oxford expansion) and absorbing smaller players [15][26]. The wildcard, as always, is a political or social shock that flips the market from glut to shortage overnight — the event that has repeatedly rewarded whoever holds capacity when it hits.

Common analytical errors. The most common mistake is treating this as a smooth defense-growth industry. Commercial ammunition is a consumer-staple-like consumable wrapped in a politically driven inventory cycle, while military ammunition is a qualification- and contract-heavy industrial business. They often share factories and brands, but their pricing, backlog, margins and demand timing differ sharply. A second error is calling all ammunition "332992": artillery shells, missiles and most of the European rearmament narrative sit outside the classification. A third is treating Winchester's segment sales, Lake City capacity, NICS checks or broad firearm-industry economic-impact claims as the size of the U.S. small-arms-ammunition manufacturing market. None is equivalent to it.

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Sources

1. U.S. Census Bureau. 2022 NAICS Definitions — 332992 Small Arms Ammunition Manufacturing (30mm caliber threshold; adjacent codes 332993/332994/332995), 2022. https://www.census.gov/naics/?details=332992&input=332992&year=2022
2. SAAMI. Glossary — Cartridge definition. https://saami.org/glossary/cartridge/
3. Olin Corporation. Form 10-K, Fiscal Year 2025 (Winchester segment sales $1,725M, segment income $67.7M, Lake City operations, military contracts, propellant sourcing, backlog, risk factors), 2026. https://www.sec.gov/Archives/edgar/data/74303/000007430326000027/oln-20251231.htm
4. SAAMI. Technical Information and FAQs (cartridge standards, testing, industry specifications). https://saami.org/technical-information/
5. U.S. Army Joint Munitions Command. Lake City Army Ammunition Plant Brochure (1.6 billion round capacity). https://www.jmc.army.mil/thumbnails/pdfs/LakeCity_Brochure.pdf
6. U.S. Census Bureau. 2022 Economic Census — Concentration ratios and receipts, NAICS 332992 (value of shipments, firm count, CR4/CR8/CR20/CR50, HHI), 2022. https://www.census.gov/programs-surveys/economic-census.html
7. U.S. Census Bureau. County Business Patterns 2023, NAICS 332992 (establishments, employment, annual and first-quarter payroll). https://www.census.gov/programs-surveys/cbp.html
8. U.S. Small Business Administration. Table of Small Business Size Standards, NAICS 332992, 2023. https://www.sba.gov/document/support-table-size-standards
9. Grand View Research. U.S. Ammunition Market — $7.70 billion (2023), 2.1% CAGR to 2030 (broader market framing vs. federal factory-shipments figure), 2024. https://www.grandviewresearch.com/industry-analysis/us-ammunition-market-report
10. Vista Outdoor / Czechoslovak Group / PR Newswire. CSG Acquisition of The Kinetic Group (Federal/CCI/Speer/Remington; CFIUS clearance; closed Nov 2024), 2024. https://www.prnewswire.com/news-releases/csg-reaffirms-its-commitment-to-successfully-completing-2-15-billion-acquisition-of-the-kinetic-group-and-maximizing-value-for-all-vista-outdoor-shareholders-302204440.html
11. Vista Outdoor / SEC. Form 425 — CSG acquisition transaction materials ($2.225 billion final value), 2024. https://www.sec.gov/Archives/edgar/data/1616318/000095015724001486/form425.htm
12. Euronext. Czechoslovak Group Announces Admission to Trading on Euronext Amsterdam (ticker CSG), January 2026. https://live.euronext.com/en/products/equities/company-news/2026-01-23-czechoslovak-group-announces-admission-trading-euronext
13. SAAMI. Member Companies (Hornady, SIG Sauer, and others). https://saami.org/membership/member-companies/
14. U.S. Army. Army Awards Next Generation Squad Weapon Contract (NGSW 6.8mm program; SIG SAUER weapons contract), 2022. https://www.army.mil/article/255827/army_awards_next_generation_squad_weapon_contract
15. AMMO, Inc. / GlobeNewswire and Olin/Winchester / PR Newswire. AMMO, Inc. Completes Sale of Ammunition Manufacturing Assets to Olin Winchester for $75 Million, April 2025. https://www.globenewswire.com/news-release/2025/04/18/3064229/0/en/AMMO-Inc-Completes-Sale-of-Ammunition-Manufacturing-Assets-to-Olin-Winchester.html
16. Outdoor Holding Company. Form 10-K, Fiscal Year 2026 (AMMO Inc. net proceeds ~$42.9 million after adjustments), 2026. https://www.sec.gov/Archives/edgar/data/1015383/000119312526276653/poww-20260331.htm
17. AmmoLand / Homeland Arms. U.S. Nitrocellulose and Propellant Supply Constraints (Ukraine demand, China export halt, 2024 plant explosion), 2024. https://www.ammoland.com/2024/10/us-ammunition-supply-faces-increasing-critical-shortages/
18. National Shooting Sports Foundation (NSSF). NSSF-Adjusted NICS Background Checks — 2024 (15.2M) and 2025 (14.6M), 2025. https://www.nssf.org/articles/nssf-adjusted-background-checks-top-15-2-million-in-2024/
19. National Shooting Sports Foundation / Congressional Research Service. Firearms and Ammunition Excise Tax (11% on ammunition, Pittman-Robertson; TTB administration; ATF FFL Types 06/07), 2023–2024. https://www.congress.gov/crs-product/IF12173
20. ATF. Treasury Decision 404 — Final Rule on Manufacturers Excise Tax on Firearms and Ammunition. https://www.atf.gov/firearms/docs/td-404-final-rule-amends-regulations-relating-manufacturers-excise-tax-firearms-and
21. U.S. Fish and Wildlife Service. 2022 Target Shooting in the United States — Participation, Demographics, and Relationship to Hunting (47.0 million target shooters in 2021). https://www.fws.gov/media/2022-target-shooting-united-states-participation-demographics-and-relationship-hunting-and
22. U.S. Fish and Wildlife Service. Americans Spent $39.4B on Hunting, Fishing and Wildlife-Associated Activities in '22 (14.4 million hunters). https://www.fws.gov/press-release/2023-10/americans-spent-394b-hunting-fishing-and-wildlife-associated-activities-22
23. U.S. Army Acquisition Support Center. Extreme Makeover — NGSW case technology and Lake City modernization. https://asc.army.mil/web/news-extreme-makeover/
24. ATF. Federal Firearms Licenses (Type 06/07 licensing, $30 fee). https://www.atf.gov/firearms/federal-firearms-licenses
25. U.S. Federal Register. Control of Firearms, Guns, Ammunition and Related Articles — Transfer of USML Categories I–III to the Commerce Control List (ITAR to EAR), January 23, 2020. https://www.federalregister.gov/documents/2020/01/23/2020-00573/control-of-firearms-guns-ammunition-and-related-articles-the-president-determines-no-longer-warrant
26. Grand View Research / SGB Media. Winchester (Olin) $100 million Oxford, MS ammunition plant expansion, +500 million rounds by 2027, 2025. https://www.grandviewresearch.com/industry-analysis/us-ammunition-market-report