Gun Parts Brands Directory (2026): 166 Brands, Live Prices

Last updated and checked October 29, 2026

Browse firearm parts and accessories by the company that makes them. Each brand page pulls live products and current prices from the 200+ retailers in our price feed, including OpticsPlanet, Brownells, MidwayUSA and GunMag Warehouse, so you can see what a maker offers and what it costs today, in one place.

Quick answer: This directory covers 166 brand pages in 14 categories, plus category hubs. AR-15 and rifle parts is the biggest category with 35 brand pages, then optics, sights and lasers with 21. Behind them sits a price feed of 123,193 parts and accessory listings from 2,352 accessory brands, so every brand page shows live prices by department.

Table of Contents

How to Use This Directory

Start with the category hubs below if you know what you need but not who makes it: AR-15 parts, Glock parts, optics, lights, holsters and so on. Each hub lists the brands we cover in that category. If you already have a brand in mind, jump to the full list further down and open its page.

Every brand page follows the same layout. It opens with who the company is, what it makes and where its products sit on price and quality, names the real competitors, and then shows live products in department carousels: slides in one row, triggers in another, red dots in another. Prices refresh from the feed automatically, so the numbers you see are current, not what a maker listed when the page was written.

Two habits save money. First, compare the same part across brands before you buy; a Glock slide or an AR-15 handguard can vary widely in price for similar features. Second, check fit. Brand pages flag platform-specific parts, and our red dot footprint chart and gun parts hub cover what fits which gun.

Shop by Category

AR-15 & Rifle Parts · Pistol & Glock Parts · Optics & Sights · Night Vision & Thermal · Weapon Lights & Lasers · Holsters & Carry Gear · Magazines & Loaders · Reloading Equipment · Gun Cleaning & Care · Slings & Bipods · Tactical Gear · Firearm Manufacturers · Hearing & Eye Protection · Targets & Training · Gun Storage & Cases

Brands by Category at a Glance

AR-15 and rifle parts has the most brand pages because the AR platform has the deepest parts aftermarket in the gun world: receivers, barrels, triggers, handguards, stocks and muzzle devices all swap between makers. Optics is second, and it is also the biggest department in our price feed by a wide margin, with 22,783 listings on October 29, 2026.

Gun parts and accessories listings in the USA Gun Shop price feed by department, led by optics with 22,783, October 2026

The price feed holds 44,672 parts listings and 78,521 accessory listings. Barrels and magazines lead the parts side; optics, hunting gear and holsters lead the accessories side. A brand page only shows the departments where that brand has live listings, so a holster maker shows holsters and a parts maker shows parts.

Where to Start in Each Category

If you are new to a category, these are the brands most shooters start with. Each link opens the brand’s page with its live lineup.

AR-15 and rifle parts: Aero Precision for receivers and uppers, Geissele for triggers and handguards, Magpul for PMAG magazines and furniture (see magpul.com), and BCM for duty-grade parts.
Pistol and Glock parts: ZEV Technologies and Grey Ghost Precision for slides and triggers, True Precision for barrels.
Optics: Holosun for value red dots (holosun.com), Trijicon for the RMR and ACOG, EOTech for holographic sights, Aimpoint for duty red dots, and Vortex and Leupold for scopes.
Weapon lights: Streamlight (streamlight.com), SureFire and Olight.
Holsters: Safariland for duty holsters, Alien Gear for hybrid IWB, Galco for leather, and DeSantis for pocket holsters.
Reloading: Hornady, RCBS, Dillon Precision and Lee Precision.
Ammunition: Federal, Speer, Winchester and CCI cover practice to defensive loads.
Firearm makers: Glock, Sig Sauer, Smith & Wesson and Ruger pages cover factory and OEM parts.

All Brands by Type

AR-15 & Rifle Parts

Pistol & Glock Parts

Optics, Sights & Lasers

Weapon Lights

Holsters & Carry Gear

Reloading

Gun Care, Tools & Shooting Gear

Targets & Training

Hearing & Eye Protection

Gun Storage & Cases

Magazines & Loaders

Maglula

Slings & Bipods

Firearm Manufacturers

Ammunition

More Brands

How to Judge a Parts Brand

A brand name is a shortcut, not a guarantee. When you compare makers in any category, check these five things on the brand page and the product listing:

Materials and process: forged vs. billet receivers, 4150 or chrome moly vanadium barrels, cold hammer-forged vs. button-rifled bores, 7075 vs. 6061 aluminum. A maker that states its materials plainly is easier to trust.
Fit and compatibility: Glock parts differ by generation, red dots by footprint, and shotgun parts by model. A good brand page and listing name the exact guns a part fits.
Warranty: lifetime warranties are common on optics, lights and holsters. Read who it covers and whether it transfers to a second owner.
Where it is made: some value brands design in the US and build overseas. That is not a dealbreaker, but our brand pages say so when it applies.
Track record: recalls, drift complaints and service turnaround tell you more than marketing. Our brand pages name past problems when a maker has had them.

Paying more buys tighter tolerances, better finishes and longer warranties, but not always more reliability. A mid-priced part from a proven maker can beat a premium part you don’t need. Start with what the gun is for, then compare the brands that build for that job.

How We Build Each Brand Page

We add a brand when our price feed carries enough of its products to fill at least one department carousel, and when shoppers search for it. Each page is written by hand: the company’s history, what it is known for, honest trade-offs such as price or where it is made, and how it compares with the brands it competes against.

Prices come from the retailers in our feed, not from the maker’s list price, so a brand page shows what a part sells for today. Some rows come from stores that run frequent sales; check shipping and the exact part number before you buy. When a retailer stops carrying a product, it drops out of the carousel automatically.

Brand pages also link to the buying guides where each brand competes, such as best red dots, best AR-15 triggers or best Glock slides, so you can see how a brand’s products rank against the field. If you want the cheapest store rather than the cheapest brand, our cheapest online gun stores guide compares retailers.

Missing a brand you want? The directory grows as our feed adds makers, and the category hubs above list every brand we cover in each department. In the meantime, our gun price check searches the full feed by product name, so you can compare any part across every retailer we track, whether or not its maker has a brand page yet.

Facts and Figures

Brand pages: 166 in 14 categories plus 30 under More Brands, and 15 category hubs, checked October 29, 2026
Biggest categories: AR-15 and rifle parts 35, optics, sights and lasers 21, firearm makers 16
Price feed: 44,672 parts listings and 78,521 accessory listings from 200+ retailers
Brands in the feed: 2,352 accessory brands and 1,265 parts brands
Biggest department: optics, 22,783 listings; then hunting gear 7,353 and holsters 5,795

Brands Directory FAQ

How many brands are in the USA Gun Shop directory?

166 brand pages in 14 categories, plus 15 category hubs, as of October 29, 2026. AR-15 and rifle parts has the most with 35 brand pages, followed by optics, sights and lasers with 21 and firearm makers with 16.

Where do the prices on brand pages come from?

From the 200+ retailers in our price feed, including OpticsPlanet, Brownells, MidwayUSA and GunMag Warehouse. The feed held 44,672 parts listings and 78,521 accessory listings on October 29, 2026. Prices refresh automatically, so they show what a part sells for today rather than the maker's list price.

What is the best AR-15 parts brand?

It depends on the part. Aero Precision is a common pick for receivers and uppers, Geissele for triggers and handguards, Magpul for magazines and furniture, and BCM for duty-grade parts. Open each brand page to compare live prices and lineups.

What is the best red dot brand?

Holosun leads on value, Trijicon (RMR and ACOG) and Aimpoint lead on duty-grade durability, and EOTech leads on holographic sights. Optics is the biggest department in our feed, with 22,783 listings on October 29, 2026.

How do I know if a part fits my gun?

Check the exact model and generation. Glock parts differ by generation, red dots by footprint, and shotgun parts by model. Brand pages and listings name the guns a part fits, and our red dot footprint chart and gun parts hub cover compatibility in detail.

Are cheaper parts brands worth buying?

Yes for non-critical parts like grips, stocks and slings, where a value brand performs close to premium. For parts that affect reliability, such as bolt carrier groups, barrels and duty optics, a proven maker with a strong warranty is worth paying for.

Why isn't my favorite brand listed?

We add a brand when our price feed carries enough of its products to fill a department carousel. Until then, our gun price check searches the full feed by product name, so you can still compare its parts across every retailer we track.

Do brand pages include factory parts for guns?

Yes. The firearm makers category covers 16 brands, including Glock, Sig Sauer, Smith & Wesson and Ruger, with factory and OEM parts alongside the aftermarket.

4,164+ Gun & Ammo Deals

Updated daily from 200+ top retailers. Filter by category, caliber, action type, and price.

2,127 Gun Deals 2,037 Ammo Deals