I found a neat way to query Brownells for AR-15 parts categories. The content below will display  Bolt Carriers and associated parts and tools available at Brownells. This is neat for a few reasons. First the page is live and automatically updates so any new parts will be visible. The other nice feature is Brownells often categorizes parts incorrectly. This format seems to work better than their own site. Check it out and watch it for updates.

Additionally I might add other pages of specific parts.



A&O Manufacturing Ar-15/M16 Bolt Carrier Carbon Scraper

Durable, tool steel scraper removes carbon buildup in AR15/M16 bolt carriers quickly and easily. Insert a section of your cleaning rod into the 7/32″ hole to act as a T-Handle and turn; dual scraping edges clean in both directions. Compact design is a perfect fit for your range bag or buttstock storage compartment. Mfg: A&O Manufacturing SPECS: Tool steel, black, matte finish. 2 3/4″ (7cm) long, … more info.

Benelli Bolt Carrier


Blade-Tech Ar-15/M16 Training Bolt Carrier

Dummy bolt carrier enables realistic dry-fire weapon handling during training without risk of accidental discharge. Lets the student safely train with his actual duty weapon simply by replacing the factory bolt/carrier assembly with this inert replica made of high-visibility yellow polymer. Preserves full carrier and trigger function for jam-clearing and reset drills, plus realistic training in … more info.

Brownells Ar-15/M16 Bolt/Carrier Completion Kit

Convenient kit contains the components you need to complete an AR-15 bolt and bolt carrier for installation in the rifle. Perfect for custom builds where bolt and carrier are obtained from different sources, and you need a firing pin, cam pin, and firing pin retaining pin to complete the assembly. Also a good idea to replace these critical parts when refurbishing existing rifles to help ensure … more info.

Brownells Ar-15/M16 Bolt/Carrier Group Kits

Convenient kits with all the parts needed to put together a reliable, smooth-cycling AR-15 bolt/carrier assembly. Carriers have forward assist notches and fully staked gas keys. Each kit also includes a fully assembled bolt, plus cam pin, firing pin, and firing pin retaining pin. Bushmaster features a precision machined, ordnance-grade steel, chrome-lined carrier and a bolt made from … more info.

Brownells Ar-15/M16/Ar-Style .308 Bolt/Carrier Pins

Precision machined replacement pins let you repair or complete a new-build AR bolt and bolt carrier. Perfect for custom builds using a bolt and carrier obtained from different sources. AR-15 Firing Pin is made of solid steel hard-chromed for reduced friction, plus wear- and corrosion-resistance. Firing Pin Retaining Pin is made from chrome-plated steel and based on the original “push-pin” design … more info.

Bushmaster Firearms Int.Llc. Ar-15 Bolt Carrier Assembly

Bolt and carrier assemblies provide smooth, efficient cycling and improved reliability in any AR-15 application. Precision machined from the highest quality ordnance-grade steels to current military-or higher-tolerances, then hardened and magnetic particle inspected to ensure there are no microscopic cracks or flaws that could lead to premature failure. Bolt made from high-strength Carpenter 158 … more info.

Cmmg Ar-15/M16 Enhanced 9mm Bolt/Carrier

Complete, drop-in carrier/bolt assembly is ramped on the bottom to provide clearance for a factory .223/5.56mm hammer in your 9mm conversion. Eliminates the need to install a dedicated 9mm hammer, so the original fire control system stays intact for easier conversion back to original caliber. Precision machined from high-grade ordnance steel, the one-piece design combines bolt and carrier as a … more info.

Colt Bolt Carrier Key


Colt M16/M4 Bolt Carrier

Factory original, fire control parts keep your select-fire Colt M16/M4 shooting reliably, so you’ll be prepared to face intensive tactical operations with the confidence of knowing your weapon won’t let you down. These parts are precision engineered and manufactured to strict quality control standards from the finest materials for correct fit in your gun. All NFA rules apply. Mfg: Colt SPECS: … more info.

Daniel Defense Ar-15/M16 Complete Bolt/Carrier Group

Complete, mil-spec assembly with bolt, bolt carrier, and firing pin ready to drop into the rifle or carbine upper of your choice. Features a shot-peened bolt for increased surface strength and durability, and an extractor booster to ensure reliable cycling during rapid semi-auto or full-auto fire. Each assembly is magnetic particle inspection tested to ensure it’s free from imperfections that can … more info.

Double Star Ar-15/M16 Bolt/Carrier Assembly

Complete bolt/carrier assembly comes ready to drop in your rifle-ideal as a replacement, in a custom build, or as a backup for extra insurance during competition. Machined from high-grade 8620 carbon steel to mil-spec dimensions, with hard-chrome plated steel firing pin and chrome-lined, staked gas key for added durability. Carrier is notched for forward assist. Magnetic particle inspection (MPI) … more info.

Dpms Firearms Llc .308 Bolt Carrier Group

Complete bolt carrier assembly Works with DPMS style .308 AR rifles Black phosphate finish Includes fully assembled carrier with gas key, firing pin, firing pin retaining pin, cam pin, and bolt Mfg: Dpms Firearms Llc

Dpms Firearms Llc Ar-15 Bolt & Bolt Carrier Combo

Steel bolt and bolt carrier combos are available in three ultra-hard, wear-resistant, self-lubricating finishes. Choose from hard Chrome plating, Titanium Nitride (TiN) coating, or IonBond Diamond Coat for natural lubricity, positive cycling, and easy cleaning. Economical yet durable Diamond Coat consists of an ion-thick layer of carbon deposited on the bolt, carrier, gas key firing pin and cam … more info.

Dpms Firearms Llc Ar-15 Bolt Carrier Assembly

The easiest way to stock and sell genuine, mil-spec AR-15 parts, or use to assemble rifles on your receivers. Much lower in total cost than buying the parts one at a time. All kits listed contain only new, current-production, genuine, mil-spec parts; never pull-offs or direct-exchange surplus. Kit includes: bolt carrier, bolt, extractor, extractor spring, extractor pin, ejector, ejector spring, … more info.

Dpms Firearms Llc Bolt Carrier

BOLT CARRIER Mfg: Dpms Firearms Llc

Dpms Firearms Llc Bolt Carrier Key

Bolt Carrier Key Mfg: Dpms Firearms Llc

Dpms Firearms Llc Bolt Carrier Key Screw

Bolt Carrier Key Screw Mfg: Dpms Firearms Llc

Dpms Firearms Llc M16 Bolt Carriers

High-quality, M16/M4 components from DPMS keep select fire weapons shooting longer and give you the confidence you need to get the job done in all tactical situations. All parts are precision engineered and made to rigid quality standards to ensure excellence and long-lasting strength when failure is not an option. All NFA rules apply. Mfg: Dpms Firearms Llc SPECS: Steel. Black. Heat-treated, … more info.

Failzero.Com Ar-15 Bolt/Carrier Group

Drop-in bolt and carrier group has a self-lubricating surface that eliminates the need to apply oil or grease that can attract dirt, dust, unburned powder, and carbon and lead to cycling failures. Proprietary EXO treatment produces an exceptionally hard surface that’s 40% more wear resistant than chrome plating, with an ultra-low friction coefficient. Surface is actually harder than the substrate … more info.

High Standard Bolt Carrier

BOLT CARRIER Mfg: High Standard

High Standard Bolt Carrier And Key


High Standard Bolt Carrier Key

BOLT CARRIER KEY Mfg: High Standard

High Standard Bolt Carrier Key Screw


High Standard Bolt/Carrier Assembly

High-quality, mil-spec parts from a respected name in precision firearms for more than 75 years, now a premier maker of complete AR-15 rifles. Replace worn or damaged parts to return a service rifle to factory specs or use in building a precision custom rifle that meets your exact requirements. Complete, prepackaged kit includes all the parts you need for specific subassemblies. Saves time and … more info.

Interarms Bolt Carrier

Keep your AK-47 or variant in top shooting condition with these high quality parts. Will fit the many variants of the AK-47 including Soviet, Soviet Bloc and Chinese made rifles. Parts are caliber-specific to 7.62x39mm. Mfg: Interarms SPECS: Steel, blue, matte finish unless otherwise indicated.

J P Enterprises Ar-15 Stainless Steel Bolt Carrier

Custom, stainless steel bolt carrier features a 100% increase in bearing surface for smooth cycling and outstanding reliability. Includes forward assist serration and dust cover notch for tactical duty or any application requiring absolute “no-fail” operation. Expanded, exterior, bearing surfaces are hand polished and ensure precise alignment in upper receiver for less wear. Non-plated carrier … more info.

Les Baer Custom Ar-15 Bolt/Carrier Group

Complete, .223/5.56mm AR-15 bolt and carrier assembly comes with all the parts, fully assembled, and ready to go. Drop it in your AR, check headspace, and you’re ready to shoot. Precision-machined in Les Baer’s state-of-the-art manufacturing facility from durable, high-grade 8620 nickel-chromium-molybdenum alloy steel billet. Mil-spec dimensions ensure proper fit and function in a wide variety of … more info.

Les Baer Custom Ar-15 National Match Bolt Carrier

Machined to National Match specifications with additional surface area that improves carrier/receiver alignment for smoother operation, more consistent bolt lockup. Features a hard chromed and fluted exterior surface that keeps more lubrication around the carrier to reduce wear and friction. Machined hammer ramp prevents damage to titanium firing pins. 1 ounce additional weight compared to … more info.

Smith Enterprise Ar-15 Mil-Spec Bolt/Carrier Assembly

Complete bolt/carrier assembly delivers the strength and durability that have made Smith Enterprise components favorites of competitors and tactical shooters. Mil-spec tolerances ensure proper fit and smooth, reliable function in the widest range of semi-auto commercial rifles for competition, duty, and field applications. Machined from high-grade 8620 carbon steel alloy for consistent dimensions … more info.

Smith Enterprise Ar-15/M16 Match Bolt Carriers

True, match-spec bolt carriers increase cycling efficiency for greater dependability and less chance of malfunction. Machined to military specs, hardened and heat treated, then hard-chrome plated for a much lower co-efficient of friction between the upper receiver and carrier. Inside surfaces of bolt recess are polished and also hard-chromed for a better gas seal and less carbon build-up. … more info.

Spikes Tactical Ar-15/M16 Bolt & Carrier Sets

Complete, fully assembled, bolt/carrier group is machined to mil-spec dimensions using the latest manufacturing techniques and quality-control testing to deliver superb reliability in both semi-auto and select-fire rifles. Carrier of hardened 8620 carbon steel has an M16-type full-length shroud on the underside to trip the auto sear on full-auto/burst rifles. Bolt is machined from ultra-hard … more info.