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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KAK Industry AR-15 Missing Parts Kit
KAK INDUSTRY$8.99KAK AR15-LP-KT-04 AR-15 MISSING PARTS KIT The KAK Industry AR-15 Missing Parts Kit is designed to complete your AR-15 rifle by providing essential components that may be missing or need replacement. This kit is compatible with standard AR-15 platforms... -
KAK Industry MO-304-1002-001 Carrier Completion Kit Phosphated
KAK INDUSTRY$12.99KAK MO-304-1002-001 CARRIER COMPLETION KIT PHOS The KAK Industry MO-304-1002-001 Carrier Completion Kit is designed to provide essential components for complete firearm assembly and maintenance. Compatible with AR-style rifles, this kit ensures reliable... -
KAK Industry MO-504-1010-001 5.56 NATO Field Repair Kit
KAK INDUSTRY$58.99KAK MO-504-1010-001 5.56 NATO FIELD REPAIR KIT The KAK Industry MO-504-1010-001 5.56 NATO Field Repair Kit is designed for quick and efficient maintenance of your rifle in the field. This comprehensive kit provides essential firearm parts to ensure your... -
KAK Industry MO-304-1010-003 Carrier Completion Kit for Firearms
KAK INDUSTRY$16.99KAK MO-304-1010-003 CARRIER COMPLETION KIT The KAK Industry MO-304-1010-003 Carrier Completion Kit is a high-quality replacement part designed for firearm assembly and maintenance. This kit includes essential components to ensure proper function and... -
KAK Industry M16 5.56 NATO Bolt Carrier Group
KAK INDUSTRY$116.99KAK MO-425-0512-001 M16 5.56 NATO BCG The KAK Industry MO-425-0512-001 bolt carrier group is a high-quality firearm component designed for M16 rifles chambered in 5.56 NATO. This bolt carrier group (BCG) is engineered to provide reliable cycling and... -
KAK Industry M16 5.56 K-Spec Bolt Carrier Group
KAK INDUSTRY$188.99KAK MO-425-3312-001 M16 5.56 K-SPEC BCG The KAK Industry MO-425-3312-001 M16 5.56 K-Spec Bolt Carrier Group is a high-performance firearm component designed for reliable cycling and enhanced durability in AR-15 and M16 platforms chambered in 5.56 NATO... -
KAK Industry MO-425-0512-003 M16 5.56 K-Spec Chrome/Phosphate Bolt Carrier Group
KAK INDUSTRY$179.99KAK MO-425-0512-003 M16 5.56 K-SPEC CHRM/PHOS BCG The KAK Industry MO-425-0512-003 M16 5.56 K-Spec Bolt Carrier Group is designed for reliable performance in AR-15 style rifles chambered in 5.56 NATO. Crafted for durability and smooth operation, this... -
KAK Industry MO-425-0506-003 M16 5.56 K-Spec NP3 Bolt Carrier Group
KAK INDUSTRY$242.99KAK MO-425-0506-003 M16 5.56 K-SPEC NP3 BCG The KAK Industry MO-425-0506-003 M16 5.56 K-Spec NP3 Bolt Carrier Group is designed to enhance the reliability and performance of your AR-15 style rifle chambered in 5.56 NATO. Crafted for durability and... -
KAK Industry M16 5.56 K-Spec Chrome Bolt Carrier Group
KAK INDUSTRY$220.99KAK MO-425-0505-002 M16 5.56 K-SPEC CHROME BCG The KAK Industry MO-425-0505-002 M16 5.56 K-Spec Chrome Bolt Carrier Group is designed for reliable performance in AR-15 style rifles chambered in 5.56 NATO. Crafted with precision and durability in mind,... -
KAK Industry MO-KAK-9MM Enhanced Bolt Carrier Group for 9mm Pistols and Carbines
KAK INDUSTRY$134.99KAK MO-KAK-9MM KAK 9MM ENHANCED BCG The KAK Industry MO-KAK-9MM Enhanced Bolt Carrier Group is designed for reliable performance in 9mm firearms, including pistols and carbines. Built with precision engineering, it offers enhanced durability and... -
KAK Industry MO-425-0510-002 M16 5.56 K-Spec Clear Anodize
KAK INDUSTRY$229.99KAK MO-425-0510-002 M16 5.56 K-SPEC CLEAR ANODIZE The KAK Industry MO-425-0510-002 M16 5.56 K-Spec is a high-quality firearm part designed for AR-15 style rifles chambered in 5.56 NATO. Featuring a clear anodized finish, this component offers durability... -
KAK Industry MO-425-0507-003 M16 5.56 K-Spec PVD FDE Bolt Carrier Group
KAK INDUSTRY$215.99KAK MO-425-0507-003 M16 5.56 K-SPEC PVD FDE BCG The KAK Industry MO-425-0507-003 is a high-performance bolt carrier group designed for M16-style rifles chambered in 5.56 NATO. Engineered for durability and reliable cycling, this BCG features a PVD... -
KAK Industry M16 5.56 C158 Chrome/Phosphate Bolt Carrier Group
KAK INDUSTRY$125.99KAK MO-425-3312-003 M16 5.56 C158 CHRM/PHOS BCG The KAK Industry MO-425-3312-003 Bolt Carrier Group (BCG) is designed for M16 rifles chambered in 5.56 NATO, offering reliable cycling and enhanced durability. Constructed with chrome and phosphate... -
KAK Industry MO-425-0505-003 M16 5.56 K-Spec Sidevent Chrome
KAK INDUSTRY$220.99KAK MO-425-0505-003 M16 5.56 K-SPEC SIDEVENT CHRM The KAK Industry MO-425-0505-003 is a high-quality sidevent chrome fire control part designed for M16 rifles chambered in 5.56 NATO. Built for durability and precision, this component enhances firearm... -
KAK Industry MO-425-0505-001 M16 5.56 K-Spec Chrome Firearm Part
KAK INDUSTRY$116.99KAK MO-425-0505-001 M16 5.56 K-SPEC CHROME The KAK Industry MO-425-0505-001 is a precision-engineered M16 5.56 caliber K-Spec chrome firearm component designed for reliable performance and durability. Crafted to meet strict specifications, this part is... -
KAK Industry AR-15 Bolt for 5.56 and 300 Blackout with Phosphate Finish
KAK INDUSTRY$80.99KAK MO-303-0502-011 AR-15 BOLT 556/300BO PHOS The KAK Industry MO-303-0502-011 AR-15 bolt is a high-quality firearm component designed to ensure reliable performance and durability in your rifle. Compatible with 5.56 NATO and 300 Blackout calibers, this... -
KAK Industry M16 224 Valkyrie / 68 SPC Bolt Carrier Group
KAK INDUSTRY$125.99KAK MO-425-0512-019 M16 224 VALKYRIE/68SPC BCG The KAK Industry M16 224 Valkyrie / 68 SPC Bolt Carrier Group is a high-quality firearm component designed for reliable cycling and optimal performance in compatible rifle platforms. Crafted for precision... -
KAK AR-15 Bolt / 5.56mm / 300 Blackout Cartridges Chrome Finish
KAK INDUSTRY$112.99The KAK Industry AR-15 bolt is a precision-machined firearm part designed for reliable chambering and cycling in AR-15 rifles chambered in 5.56mm NATO and 300 Blackout. Constructed from high-quality materials with a chrome finish, this bolt ensures... -
KAK Industry MO-425-0506-001 M16 5.56 NATO NP3 Coated Bolt Carrier Group
KAK INDUSTRY$161.99KAK MO-425-0506-001 M16 5.56 NP3 BCG The KAK Industry MO-425-0506-001 M16 5.56 NATO NP3 Coated Bolt Carrier Group is designed for reliable operation in AR-15 style rifles chambered in 5.56 NATO. Crafted for durability and smooth cycling, this bolt... -
KAK Industry MO-425-0506-007 M16 7.62x39 K-Spec NP3 Firearm Part
KAK INDUSTRY$251.99KAK MO-425-0506-007 M16 7.62X39 K-SPEC NP3 The KAK Industry MO-425-0506-007 is a high-quality firearm component designed specifically for M16 rifles chambered in 7.62x39mm. Built with precision and durability in mind, this K-Spec NP3-coated part... -
Bravo BCM MK2 Recoil Mitigation System Mod 1 T1 Buffer System
Bravo$114.99The Bravo Company Manufacturing (BCM) MK2 Recoil Mitigation System Mod 1 (MK2 RMS Mod 1) is an advanced buffer system engineered to improve the reliability, smoothness, and recoil characteristics of AR-platform rifles. Designed around BCM's proprietary... -
One Horse Nickel Boron Bolt Carrier Group for 5.56 NATO and 300 Blackout
One Horse LLC$134.99The One Horse Nickel Boron Bolt Carrier Group is a high-performance firearm component designed for AR-15 style rifles chambered in 5.56 NATO and 300 Blackout. Crafted with durability and precision in mind, this BCG features a nickel boron finish that... -
One Horse Complete 16-Inch 300 Blackout AR Upper Receiver
One Horse LLC$339.99The One Horse LLC OH-CU04 is a complete 16-inch upper receiver designed for 300 Blackout caliber firearms. This high-quality upper is built for durability and precision, making it suitable for both tactical and sporting applications. Compatible with... -
ARMASPEC ARM6511-BLK QD End Plate Aluminum for AR-15 Rifles
ARMASPEC$22.99ARMASPEC ARM6511-BLK QD END PLATE/ALUM The ARMASPEC ARM6511-BLK QD End Plate is a high-quality aluminum accessory designed for AR-15 rifles, providing a secure and durable mounting point for quick-detach slings. Its lightweight construction ensures... -
Armaspec ARM6511-FDE QD End Plate Aluminum for Rifle Stocks and Forends
ARMASPEC$22.99ARMASPEC ARM6511-FDE QD END PLATE/ALUM The Armaspec ARM6511-FDE QD End Plate is a durable aluminum accessory designed for quick detach sling mounts on rifle stocks and forends. Its robust construction ensures reliable performance under various... -
ARMASPEC ARM6511-ODG QD End Plate Aluminum for AR-15 Rifles
ARMASPEC$22.99ARMASPEC ARM6511-ODG QD END PLATE/ALUM The ARMASPEC ARM6511-ODG QD End Plate is a durable and lightweight aluminum end plate designed for AR-15 style rifles. It provides a secure attachment point for quick-detach slings, enhancing versatility and ease... -
ARMASPEC Self-Retention Aluminum Caste Nut
ARMASPEC$26.99ARMASPEC SELF-RETENTION CASTE NUT The ARMASPEC ARM6521-ODG Self-Retention Caste Nut is designed for reliable attachment and secure fitment of stocks and forends on your firearm. Constructed from lightweight aluminum, this component offers durability and... -
Primary Weapons MK1-09 Mod 1 AR Upper for 300 Blackout, 9.75 Inch Barrel, Black Finish
Primary Weapons$1,129.99PWS MK1-M1U-300BLK9 MK109 MOD1 UPPR 300BO 9.75 The Primary Weapons MK1-M1U-300BLK9 MK109 Mod 1 upper receiver is designed for precision and reliability, making it an excellent choice for enthusiasts and professionals alike. This upper is compatible with... -
LUTH-AR A1 Buttstock Kit for AR-15 in Black
Luth-AR$84.99LUTH-AR BS-A1K A1 BUTT STOCK KIT 223 BLACK The LUTH-AR BS-A1K A1 Buttstock Kit is designed to enhance your AR-15 rifle with a durable and customizable stock. Crafted for compatibility with .223 caliber rifles, this kit provides a reliable and comfortable... -
Luth-AR BL-03 Gas Tube Roll Pin for AR-15 Rifles
Luth-AR$1.99LUTH-AR BL-03 GAS TUBE ROLL PIN The Luth-AR BL-03 gas tube roll pin is a precision-engineered firearm part designed for AR-15 rifles. It serves as a crucial component in securing the gas tube to the upper receiver, ensuring proper alignment and reliable... -
Redfield STT Forged Combo Stripped Receiver Set for AR-15
REDFIELD$225.99STT STT-FORGED-COMBO STRIPPED RECIEVER COMBO The Redfield STT-FORGED-COMBO Stripped Receiver Set is designed for firearm enthusiasts looking to build or customize their AR-15 platform. This complete receiver combo includes both the upper and lower... -
Redfield STT-Forged Lower Stripped Lower Receiver
REDFIELD$119.99STT STT-FORGED-LOWER STRIPPED LOWER RECEIVER The Redfield STT-Forged Lower Stripped Lower Receiver is designed for AR-15 style rifles, providing a durable and reliable foundation for your custom build. Crafted from high-quality forged steel, this lower... -
LaRue Tactical AR-15 Upper / M-LOK Handguard / STLTH 2.0 Design
LARUE TACTICAL$414.99The LaRue Tactical LT559M4-10.5MLOK upper receiver is designed for AR-15 platform enthusiasts seeking a lightweight, durable, and versatile upgrade. Featuring a 10.5-inch barrel and M-LOK handguard, this upper provides optimal balance between... -
Black Rain BRO MILLED Lower Receiver Cerakote Black
Black Rain$166.99BRO BRO-MLR-ABLK BRO MILLED LOWER REC CERAKOTE The Black Rain BRO MILLED Lower Receiver in Cerakote Black offers a durable and precision-machined foundation for your AR-15 build. Crafted with high-quality materials, this lower receiver is designed for... -
Mission First Tactical Tekko Drop-In Handguard for AR-15 Rifles 10-inch M-LOK
Mission First Tactical$103.99TEKKO DROP IN 10" RL MLOK The Mission First Tactical TMARFF10MRS Tekko Drop-In Handguard is designed for AR-15 style rifles, offering a lightweight and durable solution for customizing your firearm. With a 10-inch length and M-LOK mounting system, it... -
Mission First Tactical E2AREPDC-CAT AR-15 Ejection Cover
Mission First Tactical$12.99MFT E2AREPDC-CAT AR15 EJCT COVER COME & TAKE IT The Mission First Tactical E2AREPDC-CAT AR-15 Ejection Cover is designed to protect and secure the ejection port of your AR-15 rifle. Crafted for durability and precision fit, this cover helps... -
Mission First Tactical E2AREPDC-AMF AR-15 Ejector Cover with American Flag Design
Mission First Tactical$12.99MFT E2AREPDC- AMF AR15 EJCT COVER AMER FLAG M4 The Mission First Tactical E2AREPDC-AMF AR-15 ejector cover is a durable and stylish accessory designed to enhance the look and functionality of your AR-15 rifle. Featuring the American flag design, this... -
Q LLC 15-HB-MLOK-HG 15-Inch M-LOK AR Handguard
Q LLC$275.99Q 15-HB-MLOK-HG 15"M-LOK AR HANDGUARD The Q LLC 15-HB-MLOK-HG is a precision-engineered AR handguard designed for optimal performance and versatility. Measuring 15 inches in length, this M-LOK compatible handguard provides a secure and modular platform... -
Proof Research PR15 Rifle Barrel for .223 Wylde, 14.5-inch, 7 Twist, PXT Finish
PROOF RESEARCH$1,149.99PROOF 152065 PR15 223 WYLDE 14.5 7TW PXT Proof Research PR15 .223 Wylde Rifle Barrel The Proof Research PR15 series barrel is designed for precision shooting and optimal performance in a .223 Wylde chamber. It features a 14.5-inch length with a 7... -
Proof Research PR15 Rifle Barrel for .223 Wylde, 16-inch Threaded, E X Tra Series
PROOF RESEARCH$1,149.99PROOF 152119 PR15 223 WYLDE 16 8TW PXT Proof Research PR15 Rifle Barrel for .223 Wylde The Proof Research PR15 series rifle barrel is designed for precision shooting and durability. It features a 16-inch length with a threaded end, compatible with...
