AR-15, M4, AR-10, and M16 parts include components for maintaining, repairing, upgrading, and customizing popular modern sporting rifle platforms. This category includes replacement parts, internal components, controls, small parts, hardware, and accessories designed for compatible rifle builds and configurations. Whether you are servicing a current rifle, completing a build, or upgrading performance and ergonomics, choosing the correct platform-specific parts helps ensure proper fit and dependable function.
- AR-15 Lowers
- AR-15 Uppers
- AR-15 Triggers
- AR-15 Bolt Carrier Groups / BCG
- 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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Proof Research PR15 6 Arc Rifle Barrel 14.5 Inches 7.5 Twist PXT
PROOF RESEARCH$749.99PROOF 152232 PR15 6 ARC 14.5 7.5TW PXT Proof Research PR15 6 Arc Rifle Barrel The Proof Research PR15 6 Arc rifle barrel features a 14.5-inch length with a 7.5 twist rate, designed for precision shooting applications. Constructed with Proof's... -
Proof Research PR15 6 Arc 16 inch Barrel with 7.5 Twist PXT Finish
PROOF RESEARCH$749.99PROOF 152249 PR15 6 ARC 16 7.5TW PXT Proof Research PR15 6 Arc 16 inch Barrel with 7.5 Twist PXT Finish The Proof Research PR15 6 Arc barrel is a precision-machined firearm component designed for high-performance shooting applications. It features... -
Proof Research PR15 6 Arc E X Tra Barrel 18 inch 7.5 Twist PXT Finish
PROOF RESEARCH$749.99Proof Research PR15 6 Arc EX-Tra Barrel 18 inch 7.5 Twist PXT Finish The Proof Research PR15 6 Arc EX-Tra barrel is a precision-made firearm barrel designed for optimal performance. It features the exclusive Proof Research engineering with a 6 Arc... -
Proof Research PR15 .223 Wylde Rifle Barrel with 16-Inch Length and 5/8-24 Thread Pattern
PROOF RESEARCH$999.99Proof Research PR15 .223 Wylde Rifle Barrel 16-Inch with 5/8-24 Thread Pattern The Proof Research PR15 series rifle barrel is chambered in .223 Wylde, offering enhanced accuracy and reliable performance for modern sporting rifles. This barrel features a... -
Proof Research PR15 .223 Wylde Rifled Barrel with 16 Inch Length and 5/8-24 Thread
PROOF RESEARCH$649.99PROOF 143391 PR15 223WYLDE 16 5/8-24 8TW Product DescriptionThe Proof Research PR15 .223 Wylde rifle barrel is designed for precision shooting, home defense, and tactical applications. Its construction emphasizes durability and accuracy, making it... -
Redfield STT 10.5-inch Everything But Low Rise Scope Mount in Black
REDFIELD$980.99STT EBTLK-10.5-BLK STT 10.5"EVERYTHING BUT LOWR Redfield STT 10.5-inch Everything But Low Rise Scope Mount in BlackThe Redfield STT 10.5-inch scope mount is designed to provide a secure and stable platform for mounting optics on your firearm. Crafted... -
Redfield STT 11.5-Inch Everything But Lower Black
REDFIELD$980.99STT EBTLK-11.5-BLK STT 11.5"EVERYTHING BUT LOWR Redfield STT 11.5-Inch Everything But Lower BlackThe Redfield STT 11.5-Inch Everything But Lower (EBTLK-11.5-BLK) is a versatile firearm component designed to enhance your rifle's performance. Crafted... -
Redfield STT 16-Inch Everything But Lower Rifle Barrel Black
REDFIELD$980.99STT EBTLK-16-BLK STT 16" EVERYTHING BUT LOWR Redfield STT 16-Inch Everything But Lower Rifle BarrelThe Redfield STT 16-Inch barrel is designed for precision and durability, making it suitable for various firearm applications. Crafted to meet high... -
Faxon Firearms Duty 5.56 Rifle Barrel 16 Inch Stainless Steel
FAXON FIREARMS$797.99FAXON FXURGD55616SA13CSR DUTY 556 16 SR UPP Faxon Firearms Duty 5.56 Rifle Barrel The Faxon Firearms FXURGD55616SA13CSR is a high-quality 16-inch rifle barrel designed for reliable performance and durability. Crafted for AR-15 style rifles, this... -
FAXON Firearms Match 6ARC 16-inch Stainless Rifle Upper
FAXON FIREARMS$863.99FAXON FXURGM6A16GA15CSR MATCH 6ARC 16 SR UPP FAXON Firearms Match 6ARC 16-inch Stainless Rifle Upper The FAXON FXURGM6A16GA15CSR is a high-quality rifle upper designed for precision shooting and reliable performance. Crafted with attention to... -
FAXON Firearms FXURGM6A125GA1075CSR Match .6 Arc 12.5-inch Rifle Barrel
FAXON FIREARMS$863.99FAXON FXURGM6A125GA1075CSR MATCH 6ARC 12.5 SR UPP FAXON Firearms FXURGM6A125GA1075CSR Match .6 Arc Rifle BarrelThe FAXON Firearms FXURGM6A125GA1075CSR is a precision-made rifle barrel designed specifically for demanding shooters and firearm enthusiasts... -
Faxon Firearms Match 65 Grain 16-Round Slim Rifle Magazine
FAXON FIREARMS$863.99FAXON FXURGM65G16GA15CSR MATCH 65GR 16 SR UPP Faxon Firearms Match 65 Grain 16-Round Slim Rifle Magazine This magazine is designed for reliable feeding and durability in modern sporting rifles. It features a slim profile to fit seamlessly into your... -
PROOF Research PR15 6mm ARC Barrel 14.5 Inch 5/8x24 1:7.5 Twist
PROOF RESEARCH$649.99PROOF Research PR15 6mm ARC Barrel 14.5 Inch 5/8x24 1:7.5 Twist The PROOF Research PR15 barrel is built for shooters who want premium AR-platform accuracy, reduced weight, and dependable performance in a 6mm ARC setup. Designed for the AR-15 platform,... -
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... -
Timber Creek Outdoor Inc Enforcer AR-15 Complete Build Kit with 15-Inch MLOK Hand Guard and Ambidextrous Controls
TIMBER CREEK OUTDOOR INC$599.99Timber Creek Outdoors TCOEKBB Enforcer Complete Build Kit Burnt Bronze The Timber Creek Outdoor Inc Enforcer AR-15 Complete Build Kit provides everything needed to assemble a high-performance AR-15 rifle. Featuring a lightweight 15-inch MLOK hand guard,... -
Timber Creek Outdoors TCOEKFDE Enforcer Complete Build Kit Flat Dark Earth
TIMBER CREEK OUTDOOR INC$599.99Timber Creek Outdoors TCOEKFDE Enforcer Complete Build Kit Flat Dark Earth -
Timber Creek Outdoor Inc Enforcer Complete AR-15 Build Kit
TIMBER CREEK OUTDOOR INC$599.99Timber Creek Outdoors TCOEKOD Enforcer Complete Build Kit OD Green The Timber Creek Outdoor Inc Enforcer Complete AR-15 Build Kit provides everything needed to assemble a high-performance AR-15. Designed for precision and durability, this kit features... -
Timber Creek Outdoors TCOEKT Enforcer Complete Build Kit Tungsten
TIMBER CREEK OUTDOOR INC$599.99Timber Creek Outdoors TCOEKT Enforcer Complete Build Kit Tungsten -
DPMS Panther Arms DP51655115745 18-Inch .308 Stainless Steel Upper Receiver with Bolt Carrier Group and Charging Handle
DPMS PANTHER ARMS$539.99DPMS DP51655115745 18"308 SS UPPER BCG&CH DPMS Panther Arms DP51655115745 18-Inch .308 Stainless Steel Upper Receiver with Bolt Carrier Group and Charging HandleThe DPMS Panther Arms DP51655115745 is an 18-inch stainless steel upper receiver... -
DPMS Panther Arms DP51655142601 18 Inch .308 NIT M-LOK Upper Receiver with Bolt Carrier Group and Charging Handle
DPMS PANTHER ARMS$559.99DPMS DP51655142601 18"308 NIT MLOK UPPER BCG&CH DPMS Panther Arms DP51655142601 18 Inch .308 NIT M-LOK Upper Receiver with Bolt Carrier Group and Charging HandleThe DPMS Panther Arms DP51655142601 is an 18-inch upper receiver designed for AR-style... -
DPMS Panther Arms 16-inch .308 NIT M-LOK Upper with Bolt Carrier Group and Charging Handle
DPMS PANTHER ARMS$574.99DPMS DP51655135005 16"308 NIT MLOK UPPER BCG&CH DPMS Panther Arms 16-inch .308 NIT M-LOK Upper with Bolt Carrier Group and Charging Handle The DPMS DP51655135005 is a 16-inch upper assembly designed for .308 caliber rifles, featuring a Nitride... -
Faxon Firearms Duty 762 16-Inch Rifle Upper Receiver
FAXON FIREARMS$801.99FAXON DUTY 762 16 SR UPP The Faxon Firearms FXURGD76216GA15CSR is a 16-inch rifle upper receiver designed for reliable performance. Crafted for duty use, it offers durability and precision for demanding shooting applications. The upper features a... -
CMMG Endeavor MK4 22 ARC 20-Inch Rifle
CMMG$954.99CMMG Endeavor 22 ARC 20" The CMMG Endeavor MK4 features a 20-inch barrel designed for precision and reliability. Chambered in 22 ARC, this rifle offers versatile performance suitable for various shooting applications. Its robust construction and... -
BATTLEARMS WORKHORSE AR15/M4 Complete Black 16" Upper Receiver — Includes BCG & RACK-15-C Ambidextrous Charging Handle
Battle Arms Development$689.99The WORKHORSE Complete 16" AR15/M4 upper receiver delivers dependable, mil-spec performance in a finished, ready-to-install package. This Black configuration ships complete with a full-auto rated bolt carrier group (BCG) and the RACK-15-C ambidextrous... -
Spike's Tactical Stripped Upper/Lower Set – GAD FDE (AR-15 Platform)
Spike's Tactical$595.00Looking to build a complete AR-15 from the ground up? The Spike’s Tactical stripped upper and lower receiver set in GAD FDE delivers unmatched precision, durability, and sleek aesthetics in one perfectly matched package. Coated in Flat Dark Earth... -
Noveske Chainsaw N4 556/223 Black Complete Lower
Noveske$680.00Noveske, Chainsaw, Lower, N4, 223 Rem/556NATO, Black Finish, Complete Lower, H2 Buffer, MOE SL Blkac Stock, MOE K2 Black Grip, ALG Trigger Specifications UPC 840906133552 Manufacturer Noveske Manufacturer Part... -
Sons of Liberty Gun Works SCALPER Complete Lower Receiver Black
Sons of Liberty$570.00SOLGW M4 Milspec Complete Lower. Collaboration with Rogue American Apparel featuring the Scalper logo and selector markings. Forged from 7075-T6 Aluminum. M16 pocket cutout. Fully machined to remove flash markings from forging. Sons of Liberty Gun... -
BATTLEARMS XIPHOS Glock Style Lightweight Billet Upper & Lower Receiver Set
Battle Arms Development$539.00The XIPHOS Glock Style Lightweight Billet Receiver Set is a matched billet upper and lower set designed for modern Glock-style AR platform builds that demand extreme durability with a lightweight footprint. CNC-machined to precision from aircraft-grade... -
BATTLEARMS Authority Elite Ambidextrous AR15 Receiver Set – 7075-T6 Billet (Black Anodized)
Battle Arms Development$599.00Authority Elite Ambidextrous Lightweight Billet AR15 Upper and Lower Receiver Set is a premium matched set engineered for performance-driven rifle builds. Precision machined from 7075-T6 billet aluminum, this receiver set delivers exceptional strength,...
