AR-15 parts kits are used to provide grouped components for building, repairing, maintaining, or upgrading compatible AR-15 rifles. They can include lower parts, upper parts, springs, pins, detents, controls, and other small components that help complete a rifle setup or support replacement work. Different kits can vary in included parts and intended use depending on the build or repair project. This category includes AR-15 parts kits built for proper fit, dependable function, and practical everyday performance.
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JE Machine Tech AR-15 Mil-Spec Castle Nut Black
JE MACHINE TECH$3.99This mil-spec castle nut is designed to secure a compatible carbine buffer tube or receiver extension to an AR-15 lower receiver. It is suitable for new firearm builds, replacement projects, repairs,... -
Ruger AR Small Parts Kit / Model 90992
Ruger$10.99The Ruger AR Small Parts Kit Model 90992 provides essential components for firearm maintenance and repair. Designed for compatibility with AR-style rifles, this kit includes various small parts... -
Ruger AR Lower Parts Kit No Trigger or Grip Model 91001
Ruger$43.99RUG 91001 AR LOWER PARTS KIT NO TRIG/GRIP The Ruger AR Lower Parts Kit No Trigger or Grip is designed to complete your AR-style build with essential internal components. This kit includes the core... -
Ruger AR Lower Parts Kit with GI Trigger and A2 Pistol Grip
Ruger$72.99RUG 91002 AR LOWER PARTS KIT/AR GI TRG/A2 PST GRIP The Ruger AR Lower Parts Kit is designed to complete your AR-style firearm with essential internal components. This kit includes a GI-style trigger... -
Ruger AR Upper Parts Kit for AR-15 Platform Rifles
Ruger$25.99The Ruger AR Upper Parts Kit is a factory-quality component kit designed for compatible AR-platform upper receivers. Ideal for repairs, maintenance, replacement, or completing a new build, this kit... -
KAK Industry AR-15 Basic Build Lower Parts Kit
KAK INDUSTRY$25.99The KAK Industry AR-15-LP-KT-02 is a comprehensive lower parts kit designed to simplify your firearm assembly process. This kit includes essential components needed to build or upgrade your AR-15,... -
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... -
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... -
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... -
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... -
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... -
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... -
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... -
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... -
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... -
LBE Unlimited AR-15 Upper Parts Kit Model AR15-UPK
LBE Unlimited$20.99LBE Unlimited AR-15 Upper Parts Kit Model AR15-UPK The LBE Unlimited AR-15 Upper Parts Kit Model AR15-UPK provides a comprehensive set of components needed to assemble or upgrade your AR-15 upper... -
LBE Unlimited AR15 Bolt Refurbishment Kit Model ARBLT-RFB
LBE Unlimited$11.99LBE Unlimited AR15 Bolt Refurbishment Kit ARBLT-RFB The LBE Unlimited AR15 Bolt Refurbishment Kit Model ARBLT-RFB is designed to restore and upgrade your AR15 rifle's bolt assembly. This kit provides... -
Cobalt Kinetics CK-Pro Receiver Set for Rifle / Green Cerakote Finish
COBALT KINETICS$1,150.99Cobalt Kinetics CK-Pro Receiver Set for Rifle with Green Cerakote Finish The Cobalt Kinetics CK-Pro Receiver Set in CK Green Cerakote is a high-quality firearm component designed for rifles. Crafted... -
Armaspec ARM6521-BLK Self-Retention Caste Nut for AR-15 and Rifles
ARMASPEC$26.99ARMASPEC ARM6521-BLK SELF-RETENTION CASTE NUT/AL Armaspec ARM6521-BLK Self-Retention Caste Nut in Black Aluminum The Armaspec ARM6521-BLK is a high-quality self-retention caste nut designed for... -
Armaspec ARM6521-FDE Self-Retention Caste Nut for Firearms
ARMASPEC$26.99ARMASPEC ARM6521-FDE SELF-RETENTION CASTE NUT/AL Armaspec ARM6521-FDE Self-Retention Caste Nut for Firearms The Armaspec ARM6521-FDE is a high-quality self-retention caste nut designed specifically... -
Armaspec ARM136-SS Anti-Walk Trigger and Hammer Pins for AR-15
ARMASPEC$10.99The Armaspec ARM136-SS Anti-Walk Trigger and Hammer Pins are designed to enhance the stability and reliability of your AR-15 rifle. Made from high-quality stainless steel, these pins provide a secure... -
Armaspec ARM251-BLK Superlight Gun Build Kit for .223 Caliber
ARMASPEC$71.99ARMASPEC ARM251-BLK SUPERLIGHT GN BUILD KIT 223 Armaspec ARM251-BLK Superlight Gun Build Kit for .223 Caliber The Armaspec ARM251-BLK Superlight GN Build Kit is designed for enthusiasts seeking a... -
Armaspec ARM251-FDE Superlight Gun Build Kit for .223 Caliber
ARMASPEC$71.99ARMASPEC ARM251-FDE SUPERLIGHT GN BUILD KIT 223 Armaspec ARM251-FDE Superlight Gun Build Kit for .223 Caliber The Armaspec ARM251-FDE Superlight Gun Build Kit is designed for firearm enthusiasts... -
Luth-AR Crush Washer for 223/5.56 with 1/2x28 Threads
Luth-AR$1.99LUTH-AR BL-06CW 223/5.56 CRUSH WASHER [1/2X28] This crush washer is designed for use with 223 and 5.56 caliber rifles, providing a secure and reliable mount for flash suppressors, muzzle brakes,... -
Luth-AR Compensator Lock Washer A1 - Model BL-06LW
Luth-AR$1.99LUTH-AR BL-06LW COMPENSATOR LOCK WASHER A1 This compensator lock washer is designed to secure the compensator on compatible firearms, ensuring stability and proper alignment. It is commonly used... -
LUTH-AR 308 Crush Washer 5/8-24 Thread
Luth-AR$2.99LUTH-AR 308-BL06CW 308 CRUSH WASHER [5/8-24] This Luth-AR 308 Crush Washer is designed for use with rifles equipped with a 5/8-24 threaded barrel. It provides a secure fit for muzzle devices such as... -
Luth-AR 308-Firing Pin for .308 Caliber Rifles
Luth-AR$11.99LUTH-AR 308-BT14 308 FIRING PIN This firing pin is designed specifically for .308 caliber rifles, providing reliable ignition for firearm operation. It is commonly used in firearm maintenance,... -
Luth-AR 308-BT16 Firing Pin Retaining Pin for 308 Rifles
Luth-AR$2.99LUTH-AR 308-BT16 308 FIRING PIN RETNNG PIN STD This firing pin retaining pin is a genuine replacement part designed for 308 caliber rifles. It ensures the secure retention of the firing pin within... -
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... -
White Label Armory AR-15 Extractor Spring
White Label Armory$9.99White Label Armory WLA-PAC-3004-05 Extractor Spring AR-15 Nitride The White Label Armory AR-15 Extractor Spring is a high-quality replacement part designed to ensure reliable cycling and extraction... -
White Label Armory AR-15 Firing Pin Retainer Kit, 10 Pack
White Label Armory$19.99White Label Armory WLA-PAC-3009-10 Firing Pin Retainer AR-15 Black Steel 10 Pack The White Label Armory WLA-PAC-3009-10 is a set of durable steel firing pin retainers designed specifically for AR-15... -
LANTAC USA Ultimate Takedown Pin Set
LANTAC USA$35.99LANTAC 01-LP-UPS ULTIMATE TAKEDOWN PIN SET The LANTAC USA Ultimate Takedown Pin Set is a high-quality accessory designed for reliable firearm disassembly and maintenance. This set includes... -
LUTH-AR LRPK-1 Lower Receiver Parts Kit AR15 Caliber 223 Rem/5.56 NATO
Luth-AR$55.99Luth-ar LRPK-1 Lower Receiver Parts Kit AR-15 .223 Rem/5.56 NATO Black The LUTH-AR LRPK-1 lower receiver parts kit provides all the essential components needed to fully assemble a stripped AR-15... -
LUTH-AR AR-PK Pin Repair Kit for AR-15 Rifles
Luth-AR$17.99Luth-ar AR-PK Pin Kit AR-15 The LUTH-AR AR-PK Pin Repair Kit is an essential maintenance tool for AR-15 owners, providing all the necessary pins and components to keep your rifle functioning... -
LUTH-AR AR-SK Spring Kit for AR-15 Rifles
Luth-AR$8.99Luth-ar AR-SK Spring Kit AR-15 The LUTH-AR AR-SK spring kit is an essential maintenance and repair component for AR-15 owners looking to ensure their rifle operates reliably. This comprehensive set... -
Tapco Enhanced Performance AR Upper Parts Kit
Tapco$32.99Tapco Enhanced Performance AR Upper Parts Kit The Tapco Upper Parts Kit provides essential components for firearm assembly and maintenance. Designed for compatibility with AR-style rifles, this kit... -
Rise Armament Oh S#it Kit Spare AR15 Parts
Rise Armament$15.99Rise Armament RAOSK015 Oh S#it Kit Spare Parts Black Aluminum The Rise Armament Oh S#it Kit is a comprehensive spare parts kit housed in a durable tin with a magnetic base to keep all components... -
LANTAC USA 01-UP-762-CPH Smooth Cam Domed Cam Pin 762 H
LANTAC USA$27.99LANTAC 01-UP-762-CPH SMOOTHCAM DOMED CAM PIN 762 H The LANTAC USA 01-UP-762-CPH SmoothCam Domed Cam Pin is a high-quality component designed for reliable firearm operation. Crafted with precision,... -
VKTR Industries WLA-PAC-1001-10 AR10/AR15 Safety Select & Eject 10 Pack
VKTR INDUSTRIES$9.99WLA WLA-PAC-1001-10 AR10/AR15 SFTY SELCT&EJCT 10PK The VKTR Industries WLA-PAC-1001-10 is a 10-pack of safety select and eject components designed for AR10 and AR15 platforms. These high-quality... -
VKTR Industries WLA-PAC-3006-10 AR15 Ejector Roll Pin 10 Pack
VKTR INDUSTRIES$4.99WLA WLA-PAC-3006-10 AR15 EJECTOR ROLL PIN 10PK The VKTR Industries WLA-PAC-3006-10 AR15 ejector roll pin is a high-quality firearm component designed for reliable operation and easy installation...