AR-15, AR-10, and M16 parts are used for building, repairing, upgrading, and maintaining compatible rifle platforms across a wide range of configurations and applications. They can include barrels, handguards, triggers, controls, upper and lower parts, gas system components, stocks, grips, and other essential pieces that support fit, function, and overall rifle performance. Different parts serve different roles depending on the platform, build goal, and intended use. This category includes AR-15, AR-10, and M16 parts built for compatibility, dependable function, and practical everyday performance.
- AR-15 Lowers
- AR-15 Uppers
- AR-15 Triggers
- AR-15 Bolt Carrier Groups / Bolts
- AR-15 Stocks
- AR-15 Grips
- AR-15 Buffer / Tubes
- AR-15 Bolt Catch
- AR -15 Magazine Catch
- AR-15 Charging Handles
- AR-15 Safety Selectors
- AR-15 Hand Stops
- AR-15 Forward Assist
- AR-15 Ejection Port Covers & Parts
- AR-15 Handguards & Rails
- AR-15 Barrels
- AR-15 Gas System Parts
- AR-15 Parts & Kits
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Products List
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One Horse M16 Nitrided Bolt Carrier Group for 5.56 NATO and 300 Blackout
One Horse LLC$80.99ONE OH-UBCO1 M16 NITRIDE BCG 5.56 300BO The One Horse LLC OH-UBCO1 M16 Nitrided Bolt Carrier Group is a high-quality component designed for AR-15 platform rifles chambered in 5.56 NATO and 300 Blackout. Crafted with precision, this BCG features a... -
One Horse LLC OH-BR01 16-Inch Carbine Gas M4 Barrel in Black for 5.56 NATO
One Horse LLC$106.99ONE OH-BR01 16" CARB GAS M4 CONTR BRL 5.56 NATO The One Horse LLC OH-BR01 is a 16-inch carbine length barrel designed specifically for AR-15/M4 style rifles chambered in 5.56 NATO. This barrel features a precision-machined construction ensuring... -
One Horse LLC OH-BR03 16-inch Mid-Length Socom Barrel for 5.56 NATO
One Horse LLC$106.99ONE OH-BR03 16" MID-LNGTH SOCOM BRL 5.56 NATO The One Horse LLC OH-BR03 is a precision-machined 16-inch mid-length barrel designed specifically for 5.56 NATO caliber firearms. Crafted with high-quality materials, this barrel provides reliable... -
One Horse LLC OH-BR04 16-inch Pistol Gas SOCOM Barrel for .300 Blackout
One Horse LLC$106.99ONE OH-BR04 16" PISTOL GAS SOCOM BRL 300 BO The One Horse LLC OH-BR04 is a precision-engineered 16-inch pistol gas SOCOM barrel designed specifically for .300 Blackout caliber firearms. Crafted with durability and performance in mind, this barrel is... -
One Horse LLC OH-BR07 7.5 inch 5.56 NATO Barrel
One Horse LLC$88.99ONE OH-BR07 7.5" 5.56 NATO BRL 1:7 The One Horse LLC OH-BR07 is a precision-machined 7.5-inch barrel designed for 5.56 NATO caliber rifles. Crafted with durability and accuracy in mind, this barrel features a 1:7 twist rate to ensure stable and... -
One Horse LLC OH-BR08 7.5-inch 300 Blackout Barrel with 1:7 Twist
One Horse LLC$88.99ONE OH-BR08 7.5" 300 BLACKOUT BRL 1:7 The One Horse LLC OH-BR08 is a high-quality firearm barrel designed specifically for .300 Blackout cartridges. With a length of 7.5 inches, this barrel offers a compact yet effective option for versatile shooting... -
One Horse LLC 15-inch M-LOK Handguard
One Horse LLC$63.99ONE OH-HG01 15" M-LOK HANDGUARD The One Horse LLC OH-HG01 is a 15-inch M-LOK handguard designed for AR-15 style rifles. Crafted to provide a versatile and lightweight solution, this handguard offers enhanced control and customization options for... -
One Horse LLC OH-HG02 10-inch M-LOK Handguard
One Horse LLC$57.99ONE OH-HG02 10" M-LOK HANDGUARD The One Horse LLC OH-HG02 is a 10-inch M-LOK handguard designed for enhanced firearm handling and customization. Crafted from durable materials, this handguard provides a secure and stable platform for mounting... -
One Horse LLC OH-HG03 7-Inch M-LOK Handguard
One Horse LLC$56.99ONE OH-HG03 7" M-LOK HANDGUARD The One Horse LLC OH-HG03 7-Inch M-LOK Handguard is a durable and lightweight accessory designed to enhance the functionality and customization of your rifle. Crafted from high-quality materials, this handguard provides... -
One Horse LLC OH-GT01 Pistol Gas Tube
One Horse LLC$16.99ONE OH-GT01 PISTOL GAS TUBE The One Horse LLC OH-GT01 Pistol Gas Tube is a high-quality replacement part designed for optimal firearm performance. Crafted with precision, this gas tube ensures reliable cycling and consistent operation for your... -
One Horse LLC OH-GT02 Carbine Gas Tube
One Horse LLC$17.99ONE OH-GT02 CARBINE GAS TUBE The One Horse LLC OH-GT02 Carbine Gas Tube is a critical component for AR-15 style rifles, designed to ensure proper cycling and reliable operation. Crafted with precision, this gas tube directs gases from the barrel to... -
One Horse LLC OH-GT03 Mid-Length Gas Tube
One Horse LLC$18.99ONE OH-GT03 MID-LENGTH GAS TUBE The One Horse LLC OH-GT03 Mid-Length Gas Tube is a high-quality firearm component designed for reliable performance in AR-15 style rifles. This gas tube serves as a critical part of the gas system, directing gases from... -
One Horse LLC OH-GT04 Rifle Gas Tube
One Horse LLC$18.99ONE OH-GT04 RIFLE GAS TUBE The One Horse LLC OH-GT04 rifle gas tube is a high-quality component designed for reliable operation in modern firearm builds. Crafted with precision and durability in mind, this gas tube ensures smooth gas flow from the... -
One Horse Low Profile Steel Gas Block for .750 Inch Diameter Barrels
One Horse LLC$17.99ONE OH-GB01 LOW PROFILE STEEL GAS BLOCK .750 DIA The One Horse LLC OH-GB01 is a precision-engineered low profile steel gas block designed to fit standard .750 inch diameter barrels. Crafted from durable steel, this gas block provides reliable... -
One Horse AR-15 Buffer Tube Kit / Carbine Buffer
One Horse LLC$32.99ONE OH-BT01 AR15 BUFFER TUBE KIT CARBINE BUFFER The One Horse LLC OH-BT01 AR-15 Buffer Tube Kit is a high-quality component designed for easy installation and reliable performance on AR-15 rifles. This kit includes a durable buffer tube and a carbine... -
One Horse LLC OH-OS01 AR-15 OH-SHYT Kit
One Horse LLC$14.99ONE OH-OS01 AR15 OH-SHYT KITS The One Horse LLC OH-OS01 AR-15 OH-SHYT Kit is a comprehensive upgrade package designed to enhance your AR-15 rifle. This kit includes all the necessary components to improve the functionality and performance of your... -
One Horse AR-15 Mil-Spec Standard 6-Position Buttstock
One Horse LLC$20.99The One Horse LLC OH-BS01 Mil-Spec Standard 6-Position Buttstock is a high-quality replacement part designed for AR-15 style rifles. Crafted to meet military specifications, this buttstock offers reliable durability and consistent performance for... -
Cobalt Kinetics CK-Pro Receiver Set for Rifle in Black Cerakote
COBALT KINETICS$1,150.99Cobalt Kinetics CK-PRO-SET-108-BLK CK-Pro Receiver Set Rifle Black Cerakote The Cobalt Kinetics CK-Pro Receiver Set is a high-quality component designed specifically for rifles, offering durability and precision. Crafted from lightweight aluminum, this... -
Cobalt Kinetics CK-Pro Receiver Set in Flat Dark Earth Cerakote
COBALT KINETICS$1,150.99Cobalt Kinetics CK-PRO-SET-108-FDE CK-Pro Receiver Set Rifle Flat Dark Earth Cerakote The Cobalt Kinetics CK-Pro Receiver Set in Flat Dark Earth Cerakote is a high-quality firearm component designed for precision rifles. Crafted from durable aluminum,... -
Cobalt Kinetics CK-Pro Receiver Set in Flat Dark Earth Cerakote
COBALT KINETICS$1,150.99Cobalt Kinetics CK-PRO-SET-118-FDE CK-Pro Receiver Set Rifle Flat Dark Earth Cerakote The Cobalt Kinetics CK-Pro Receiver Set in Flat Dark Earth Cerakote is a high-quality firearm component designed for rifle enthusiasts and professional shooters... -
Cobalt Kinetics CK-Pro Receiver Set for Rifle in Flat Dark Earth Cerakote
COBALT KINETICS$1,150.99Cobalt Kinetics CK-PRO-SET-13-FDE CK-Pro Receiver Set Rifle Flat Dark Earth Cerakote The Cobalt Kinetics CK-Pro Receiver Set is a high-quality upgrade designed for rifles, offering enhanced durability and a sleek appearance. Crafted from lightweight... -
Magne-Tech MGN-M-LOK-WPN MLOK Rail Mount
MAGNE-TECH$98.99The Magne-Tech MGN-M-LOK-WPN is a versatile M-LOK rail mount designed for easy attachment to your firearm's handguard or forend. Crafted to provide a secure and stable platform, this rail mount allows you to easily attach accessories such as lights,... -
Magne-Tech Pic Rail Mount for Tactical Firearms
MAGNE-TECH$107.99The Magne-Tech Pic Rail Mount is a versatile accessory designed to enhance your firearm's customization options. Crafted for quick and secure attachment to Picatinny rails, this mount allows for the easy addition of optics, lights, or other tactical... -
Magne-Tech Pic Accessory Mount 3 Inches
MAGNE-TECH$89.99MAGNE-TECH MGN-PIC-ACC-MNT PIC ACC MOUNT 3" The Magne-Tech Pic Accessory Mount is a versatile 3-inch mounting solution designed to securely attach accessories to your firearm or equipment. Crafted for durability and stability, this mount provides a... -
Armaspec ARM148-SS Spare Parts Kit
ARMASPEC$14.99ARMASPEC ARM148-SS SPARE PARTS KIT The Armaspec ARM148-SS Spare Parts Kit is a comprehensive collection of essential replacement components designed for your firearm. Crafted by Armaspec, this kit ensures that you have the necessary parts on hand for... -
Armaspec ARM251-ODG Superlight Green Build Kit for .223
ARMASPEC$71.99ARMASPEC ARM251-ODG SUPERLIGHT GN BUILD KIT 223 The Armaspec ARM251-ODG Superlight Green Build Kit is a comprehensive upgrade set designed for AR-15 rifles chambered in .223. This kit includes essential components to enhance the performance and... -
Black Rain BRO LP750 .750 Low Profile Gas Block
Black Rain$24.99BRO LP750 .750 LOW PROFILE GAS BLOCK The Black Rain BRO LP750 .750 Low Profile Gas Block is a precision-engineered component designed for AR-15 style rifles. Crafted to provide a secure fit, this gas block is essential for reliable operation and... -
Black Rain Low Profile .936 Gas Block
Black Rain$29.99BRO LP936 .936 LOW PROFILE GAS BLOCK The Black Rain LP936 .936 low profile gas block is designed to provide a secure and reliable fit for your AR-15 or similar rifles. Constructed with precision and durability in mind, this gas block is ideal... -
Black Rain LP936A .936 Adjustable Low Profile Gas Block
Black Rain$41.99BRO LP936A .936 ADJ LOW PROF GAS BLOCK The Black Rain LP936A .936 Adjustable Low Profile Gas Block is a precision component designed for AR-15 style rifles. This gas block helps regulate gas flow from the barrel to the action, ensuring reliable... -
Primary Weapons MK1-M2U-6ARC 14.5-inch Upper Assembly
Primary Weapons$1,399.99PWS MK1-M2U-6ARC14 MK114 MOD2 UPPR 6ARC 14.5 The Primary Weapons MK1-M2U-6ARC 14.5-inch upper assembly is designed to enhance your firearm's performance and reliability. Crafted with precision, this upper includes the MK114 MOD2 upper receiver and... -
Primary Weapons MK1-M2U-6ARC 18 Upper
Primary Weapons$1,399.99PWS MK1-M2U-6ARC18NC MK118 MOD2 UPPR 6ARC 18 The Primary Weapons MK1-M2U-6ARC 18 Upper is a high-performance firearm component designed for reliable and precise shooting. Crafted to enhance your rifle's capabilities, this upper receiver features... -
Proof Research PR15 .223 Wylde Rifle Barrel with 11.5 Inch Length and 5/8-24 Thread Pattern
PROOF RESEARCH$649.99PROOF 143360 PR15 223WYLDE 11.5 5/8-24 7TW The Proof Research PR15 .223 Wylde rifle barrel is designed for precision shooting and reliable performance. Crafted from high-quality materials, this barrel offers excellent accuracy and durability, making it... -
Proof Research PR15 .223 Wylde Rifle Barrel - 14.5 inch, 5/8-24 Thread
PROOF RESEARCH$649.99PROOF 143377 PR15 223WYLDE 14.5 5/8-24 7TW The Proof Research PR15 series rifle barrel is designed for precision shooters seeking reliable performance and durability. Crafted with advanced materials, this barrel offers excellent accuracy and... -
Reptilia LLC CQG Grip No Backstrap
REPTILLA,LLC$19.99REPTILIA 100178 CQG GRIP - NO BACKSTRAP The Reptilia LLC CQG Grip is a high-quality firearm accessory designed to enhance grip control and stability during shooting. Crafted with precision, this grip provides a secure hold, improving accuracy and... -
Reptilia LLC AR-15 Charging Handle
REPTILLA,LLC$94.99REPTILIA 100317 PULLER-AR15 CHARGING HANDLE BLK The Reptilia LLC AR-15 Charging Handle is a high-quality component designed to enhance your rifle's functionality and reliability. Crafted for durability and ease of use, this charging handle allows for... -
Reptilia LLC AR-15 Charging Handle in Flat Dark Earth
REPTILLA,LLC$94.99REPTILIA 100319 PULLER-AR15 CHARGING HANDLE FDE The Reptilia LLC AR-15 Charging Handle in Flat Dark Earth is a high-quality replacement part designed for seamless firearm operation. Crafted for durability and reliability, this charging handle allows for... -
Odin Works 6mm ARC 18-inch Rifle Barrel with Tunable Gas Block and Gas Tube
Odin Works$356.99Odin Works B6MM18ARCRTG 6mm ARC Stainless Steel The Odin Works 6mm ARC 18-inch rifle barrel is designed for precision and versatility in long-range shooting applications. Made from high-quality stainless steel, this barrel offers durability and... -
WOOX LLC M-LOK Angled Fore Grip Walnut
WOOX LLC$79.99Woox SH.AGR001.01 Angled Grip Walnut Wood The WOOX LLC M-LOK Angled Fore Grip is a compact and reversible tactical accessory designed for enhanced weapon control. Crafted from premium American Walnut, this fore grip combines durability with a refined... -
Battenfeld Caliber Bipod Adapter Pic Rail to M-LOK
Battenfeld$15.99CALD 1242499 BIPOD ADAPTER PIC RAIL TO MLOK The Battenfeld Caliber Bipod Adapter is designed to enhance the versatility of your firearm by providing a reliable connection point for bipods. This adapter allows you to attach a bipod directly to your... -
AREA 419 Single MLOK ArcLock for AR-15 Rifles
AREA 419 FIREARMS$40.99AREA 419 419-ALK-SMLOK SINGLE MLOK ARCALOCK The AREA 419 419-ALK-SMLOK is a high-quality, lightweight accessory designed for AR-15 rifles with MLOK handguards. Crafted with precision, this single MLOK ArcLock provides a secure attachment point for...
