Gun parts are used to repair, maintain, upgrade, customize, or complete a firearm - AR-platform firearms, and other common firearm setups, including replacement parts, build parts, small parts, stocks, grips, triggers, muzzle devices, pins, springs, rails, mounts, and other firearm-related components.
The right parts can help keep a firearm serviceable, easier to use, and better suited for training, home defense, hunting, recreational shooting, or general ownership.
Before ordering, always confirm the part is compatible with your firearm’s make, model, caliber, generation, and configuration. Some parts may require proper tools, installation knowledge, or a qualified gunsmith for safe and correct installation.
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LANTAC 556 ENHANCED BCG BLK NITRIDE
Lantac$261.99Lantac 5.56 Enhanced BCG – Black Nitride The Lantac 5.56 Enhanced Bolt Carrier Group is a high-performance upgrade for AR-15 platforms chambered in 5.56 NATO, .223 Remington, and .300 Blackout. Featuring Lantac’s signature enhanced cam path... -
KAK AR15 BCG M16 556/300 CLP BLK
KAK Industries$116.99KAK AR15 BCG M16 – 5.56 / .300 Blackout, CLP, Black The KAK AR15 M16 BCG is an exceptional bolt carrier group designed for 5.56 NATO and .300 Blackout calibers, offering superior performance, durability, and reliability for your AR-15 build... -
KAK BCG M16 762X39 K-SPEC NP3 GRY
KAK Industries$251.99KAK BCG M16 – 7.62x39 K-Spec, NP3, Gray The KAK BCG M16 – 7.62x39 K-Spec is a high-performance bolt carrier group designed for 7.62x39 AR-15 builds. Featuring a K-Spec profile and NP3 (Nickel-Teflon) coating, this BCG offers enhanced... -
BOOTLEG 5.56 NITRIDE BCG COMPLETE
Bootleg$129.95BOOTLEG 5.56 NITRIDE BCG COMPLETE – MIL-SPEC PERFORMANCE, ENHANCED DURABILITY Upgrade your AR-15 with the BOOTLEG 5.56 NITRIDE BCG COMPLETE, a premium bolt carrier group designed for performance, reliability, and longevity. Manufactured from... -
ODIN ENHANCED 9MM BCG STAINLESS
Odin Works$160.55ODIN ENHANCED 9MM BCG STAINLESS – PRECISION ENGINEERING FOR 9MM AR BUILDS The ODIN ENHANCED 9MM BCG STAINLESS is built for shooters who demand premium materials, enhanced performance, and reliability in their blowback-operated 9mm AR... -
ODIN ENHANCED 9MM BCG BLACK
Odin Works$160.55ODIN ENHANCED 9MM BCG BLACK – SMOOTH, RELIABLE PERFORMANCE FOR YOUR PCC The ODIN ENHANCED 9MM BCG BLACK is engineered for precision and dependability in 9mm AR platforms. Designed to handle the unique demands of pistol-caliber... -
FailZero 9MM BCG NO HAMMER BLK NITRIDE
FailZero$179.99FAILZERO 9MM BCG NO HAMMER BLK NITRIDE – DEPENDABLE PERFORMANCE FOR YOUR PCC The FailZero 9MM BCG NO HAMMER BLK NITRIDE is engineered for maximum reliability in blowback-operated AR-style 9mm rifles and pistols. Coated in a durable black nitride... -
LANTAC 556 ENHANCED BCG TIN
Lantac$305.99LANTAC 556 ENHANCED BCG TiN – PREMIUM TITANIUM NITRIDE PERFORMANCE The LANTAC 556 ENHANCED BCG TiN sets a new standard in bolt carrier group performance. Coated in an ultra-smooth Titanium Nitride (TiN) finish, this BCG is built to enhance your... -
BATTLEARMS BAD M4/M16 STANDARD BCG
Battle Arms Development$135.00BAD M4/M16 STANDARD BCG – MIL-SPEC RELIABILITY FROM BATTLE ARMS DEVELOPMENT The BAD M4/M16 STANDARD BCG from Battle Arms Development is a rugged, MIL-SPEC bolt carrier group built to meet the needs of professional shooters, builders, and... -
ROSCO 556NATO/300BLK BCG PHOS BLK
Rosco mfg.$145.00ROSCO 556NATO/300BLK BCG PHOS BLK – BUILT FOR HARD USE, READY FOR DUTY The ROSCO 556NATO/300BLK BCG PHOS BLK is a duty-ready bolt carrier group designed for reliability, durability, and consistent performance. Whether you're running 5.56 NATO or ... -
KAK AR15 BCG M16 556 K-SPEC NP3 DE
KAK Industries$247.49KAK AR15 BCG M16 556 K-SPEC NP3 DE – NEXT-LEVEL PERFORMANCE WITH NP3 AND DURABLE EARTH FINISH The KAK AR15 BCG M16 556 K-SPEC NP3 DE is a precision-engineered bolt carrier group designed for shooters who demand advanced coatings, battle-ready... -
ANGSTADT AR15 BCG 556NATO BLK
Angstadt Arms$122.00ANGSTADT AR15 BCG 556NATO BLK – PRECISION-BUILT FOR DUTY-READY RELIABILITY The ANGSTADT AR15 BCG 556NATO BLK is a high-performance bolt carrier group engineered for serious shooters and demanding environments. Designed for AR-15 platforms chambered... -
ROSCO 556NATO/300BLK BCG MELONITE BK
Rosco mfg.$140.00ROSCO 556NATO/300BLK BCG MELONITE BK – TOUGH, RELIABLE, BUILT TO RUN CLEAN The ROSCO 556NATO/300BLK BCG MELONITE BK is a premium bolt carrier group built for dependability and low-maintenance performance. Coated in a sleek black Melonite finish,... -
Q AR-15 TWO PIECE BCG
Q$350.00Q AR-15 TWO PIECE BCG – INNOVATIVE DESIGN FOR IMPROVED PERFORMANCE The Q AR-15 TWO PIECE BCG is a groundbreaking bolt carrier group that revolutionizes the AR-15 platform. Featuring a two-piece design, this BCG combines innovative engineering with... -
LBE AR BOLT CARRIER GROUP
LBE Unlimited$169.99LBE AR BOLT CARRIER GROUP – DEPENDABLE, MIL-SPEC PERFORMANCE YOU CAN TRUST The LBE AR BOLT CARRIER GROUP is a reliable, MIL-SPEC component built to meet the demands of AR-15 rifle owners who prioritize quality and consistency. Whether you’re... -
FAXON 308/6.5 CM/8.6 BLK BCG
Faxon$219.00FAXON 308/6.5 CM/8.6 BLK BCG – MULTI-CALIBER PRECISION FOR LARGE-FRAME AR PLATFORMS The FAXON 308/6.5 CM/8.6 BLK BCG is built for shooters who demand rugged performance, multi-caliber versatility, and top-tier engineering in their large-frame AR... -
LANTAC M-SPEC BCG 762 NITRIDE BLK
Lantac$220.99LANTAC M-SPEC BCG 762 NITRIDE BLK – MIL-SPEC STRENGTH MEETS PREMIUM FINISH The LANTAC M-SPEC BCG 762 NITRIDE BLK is designed to deliver professional-grade performance in AR-10/LR-308 platforms. Featuring MIL-SPEC materials and a black nitride... -
SANTAN AR10 ENHNCD BCG 308 NTRD BLK
San Tan Tactical$300.00SANTAN AR10 ENHNCD BCG 308 NTRD BLK – PRECISION ENGINEERING FOR AR-10 RELIABILITY The SANTAN AR10 ENHNCD BCG 308 NTRD BLK is a premium bolt carrier group designed for serious AR-10 builders and shooters. With enhanced geometry, precision machining,... -
RADIAN ENHANCED BCG FOR AR15 BLK NIT
Radian$209.95RADIAN ENHANCED BCG FOR AR15 BLK NIT – SMOOTH. STRONG. SMARTLY ENGINEERED. The RADIAN ENHANCED BCG FOR AR15 BLK NIT is the pinnacle of bolt carrier group innovation—engineered for flawless operation, ultra-smooth cycling, and superior... -
AERO AR10 308 BCG W/LOGO
Aero Precision / Aero Precision is temporarily unavailable - Company is currently restructuring$234.99AERO AR10 308 BCG W/LOGO – PROVEN POWER FOR YOUR LARGE-FRAME BUILD The AERO AR10 308 BCG W/LOGO is a premium bolt carrier group designed specifically for .308 AR platforms. Precision-machined to Aero Precision's exacting standards, this BCG is... -
FailZero BASIC SEMI KIT BOLT & HAMMER
FailZero$189.99FAILZERO BASIC SEMI KIT BOLT & HAMMER – READY-TO-RUN UPGRADE FOR YOUR AR-15 The FailZero BASIC SEMI KIT BOLT & HAMMER provides a reliable, high-performance bolt and hammer combo designed for AR-15 rifles in semi-automatic configuration... -
FailZero AR10 BCG NO HAMMER NIB
FailZero$259.99FAILZERO AR10 BCG NO HAMMER NIB – NICKEL BORON RELIABILITY FOR YOUR LARGE-FRAME RIFLE The FailZero AR10 BCG NO HAMMER NIB is a premium bolt carrier group designed for DPMS-pattern AR-10 rifles. Featuring FailZero’s patented EXO Nickel Boron... -
FailZero AR15 BCG NO HAMMER MATTE
FailZero$179.99FAILZERO AR15 BCG NO HAMMER MATTE – CLEAN, DEPENDABLE, MIL-SPEC TO THE CORE The FailZero AR15 BCG NO HAMMER MATTE is a durable, no-nonsense bolt carrier group built for AR-15 rifles and carbines. Featuring a matte black finish and FailZero’s... -
FailZero AR15 BCG NO HAMMER BLK
FailZero$179.99FAILZERO AR15 BCG NO HAMMER BLK – SMOOTH, CLEAN, AND BUILT TO PERFORM The FailZero AR15 BCG NO HAMMER BLK is a high-performance bolt carrier group built for semi-automatic AR-15 platforms. Coated with FailZero’s advanced black EXO Nickel... -
PHASE5 BOLT CARRIER GROUP AR15 BLK
Phase 5 Weapon Systems$150.00PHASE5 BOLT CARRIER GROUP AR15 BLK – RELIABLE PERFORMANCE AND DURABILITY The PHASE5 BOLT CARRIER GROUP AR15 BLK is a premium, MIL-SPEC compatible bolt carrier group designed for 5.56 NATO and .223 Remington AR-15 rifles. Built for exceptional... -
MIDWEST 5.56/233 AR15 BLACK NITRIDE BCG
Midwest Industries$157.95MIDWEST 5.56/.223 AR15 BLACK NITRIDE BCG – ENHANCED PERFORMANCE FOR YOUR AR-15 The MIDWEST 5.56/.223 AR15 BLACK NITRIDE BCG is a high-quality, durable bolt carrier group designed for AR-15 rifles chambered in 5.56 NATO or .223 Remington. Featuring... -
MIDWEST 5.56/223 AR15 ENHANCED BCG
Midwest Industries$167.95MIDWEST 5.56/.223 AR15 ENHANCED BCG – TOP-TIER PERFORMANCE FOR YOUR AR-15 The MIDWEST 5.56/.223 AR15 ENHANCED BCG is a precision-engineered bolt carrier group designed to maximize the performance of your AR-15 rifle. Built for 5.56 NATO and .223... -
GUNFIGHTER Complete Lower Receiver Group – SPMD, Black | Mil-Spec AR15/M4 Platform
BCM$525.00GUNFIGHTER COMPLETE LOWER RECEIVER GROUP – SPMD, BLACK | MIL-SPEC AR15/M4 PLATFORM The GUNFIGHTER Complete Lower Receiver Group – SPMD, Black is a high-quality, fully assembled lower receiver designed for AR15/M4 platforms. Crafted to... -
AERO Precision M5 AR-10 Complete Lower Receiver with MOE Grip – Black | .308 / 7.62 NATO
Aero Precision / Aero Precision is temporarily unavailable - Company is currently restructuring$464.99WATCHTOWER 15 BILLET COMPLETE LOWER RECEIVER – FDE | AR-15 MIL-SPEC READY PLATFORM The WATCHTOWER 15 Billet Complete Lower Receiver – FDE is a high-performance, precision-machined lower receiver designed for the AR-15 platform... -
AERO AR15 STRIPPED LOWER GEN 2 FDE
Aero Precision / Aero Precision is temporarily unavailable - Company is currently restructuring$139.99AERO AR15 STRIPPED LOWER GEN 2 FDE – PREMIUM AR-15 PLATFORM FOUNDATION The AERO AR15 STRIPPED LOWER GEN 2 FDE is a high-quality, precision-machined lower receiver designed for AR-15 builds. Manufactured by Aero Precision, a trusted name in the... -
Desert Tech QUATTRO-15 LOWER 556NATO 53RD BLK
Desert Tech$277.86DESERT TECH QUATTRO-15 LOWER 5.56 NATO 53RD BLK – PREMIUM AR-15 PLATFORM COMPONENT The Desert Tech QUATTRO-15 LOWER 5.56 NATO 53RD BLK is a precision-crafted, high-performance lower receiver designed for AR-15 builds. Built by Desert Tech, this... -
AERO AR9 COMPLETE LOWER 9/40 BLK
Aero Precision / Aero Precision is temporarily unavailable - Company is currently restructuring$359.99AERO AR9 COMPLETE LOWER 9/40 BLK – PREMIUM LOWER RECEIVER FOR 9MM & 40 S&W AR BUILD The AERO AR9 COMPLETE LOWER 9/40 BLK is a high-quality, fully assembled lower receiver designed for 9mm and .40 S&W AR-9 builds. Manufactured by Aero... -
SPIKE'S STRIPPED LOWER 9MM GLK PTNMG
Spike's Tactical$161.10Spike's Tactical, STLS920 9mm Glock Style Lower w/Spider Logo, Semi-automatic, Black Finish, Bolt Locks Back After Last Round 9mm Hard Coat Anodized Finish Lower Receiver Product Description Spike's lowers are made to the highest standards... -
SPIKE'S STRIPPED LOWER (NO LOGO II)
Spike's Tactical$107.10Spike's Tactical, STLS045 No Logo II, Stripped Lower, Semi-automatic, 223 Rem/556NATO, Black Finish, Non-Color, No Logo Multi Caliber Hard Coat Anodized Finish Lower Receiver Product Description Spike's lowers are made to the highest... -
Spike's Tactical Spider Stripped Lower Receiver – AR-15 Multi-Caliber
Spike's Tactical$107.10The Spike's Tactical Spider Stripped Lower Receiver is a high-quality foundation for building a custom AR-15 platform rifle. Precision machined from 7075-T6 aluminum, this lower receiver delivers strength, durability, and reliability for both tactical... -
AERO M16A4 Clone Stripped Lower
Aero Precision / Aero Precision is temporarily unavailable - Company is currently restructuring$129.99Aero Precision, M16A4 Clone Lower, Semi-automatic, 223 Rem/556NATO, Anodized Finish, Black Custom Aero Precision logo Markings include: Property of U.S.A., MOD M16A4, CAL. 5.56MM Serial number designation Safe/Semi/Burst safety selector... -
SPIKE'S STRIPPED LOWER (VIKING)
Spike's Tactical$107.10Spike's Tactical, STLS031 Viking, Stripped Lower, Semi-automatic, 223 Rem/556NATO, Black, Non-Color Multi Caliber Hard Coat Anodized Finish Lower Receiver Product Description Spike's lowers are made to the highest standards. If you are... -
SPIKE'S STRIPPED LOWER (CRUSADER)
Spike's Tactical$107.10Spike's Tactical, STLS022 Crusader, Stripped Lower, Semi-automatic, 223 Rem/556NATO, Black Finish, Crusader Logo Multi Caliber Hard Coat Anodized Finish Lower Receiver Product Description Spike's lowers are made to the highest standards. If... -
Spike's Tactical Stripped Lower (Spider) – AR-15 Multi-Cal Receiver
Spike's Tactical$107.10The Spike’s Tactical Spider Stripped Lower Receiver is one of the most recognizable and trusted lowers in the AR-15 world. With the iconic spider logo laser-engraved on the magwell, this lower combines aggressive styling with rock-solid reliability... -
Spike's Tactical Stripped Lower (Calico Jack) – AR-15 Multi-Cal Receiver
Spike's Tactical$120.60The Spike’s Tactical Calico Jack Stripped Lower Receiver is more than just the foundation of your AR-15 build—it's a bold expression of attitude and reliability. Featuring a menacing Calico Jack pirate skull and crossed swords laser-engraved...
