AR-15 Parts
Shop our extensive inventory of AR-15 parts and modern sporting rifle (MSR) components. From fully assembled MIL-SPEC upper receivers and enhanced lower parts kits to free-float M-LOK handguards and ambidextrous controls, we carry the critical components required for duty, defense, and custom builds.
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Out of stock
$46.71 -
Out of stock
Knights Armament - KAC Aimpoint Micro Battery Cap Assembly - #25871
Knights Armament Company
$46.71Â Â$46.71 -
Knights Armament - Barrel Extension Action Wrench - 30447
Knights Armament Company
MSRP: $101.35$96.28The Knight's Armament Barrel Extension Action Wrench (KAC PN: 30447) is KAC's purpose-designed action wrench for removing and installing barrel extensions on SR-15, SR-25, and other KAC platforms...MSRP: $101.35$96.28 -
Out of stockOn Sale
LMT Defense - 243Win 20" Barrel Assembly - #LM243B220S
LMT Defense
Now: $765.10Was: $810.00LMT® 20″ stainless steel 1:10″ RH twist 243 Winchester barrel for MWS upper receivers. Includes low profile gas block, straight gas tube, A2 flash hider. SPECS Barrel Caliber: 243 Win Barrel Length:...Now: $765.10Was: $810.00 -
Out of stock
Ruger - Standard Ruger MK IV Upper 6" Barreled Receiver .22 LR - #VCSCU‑0008
Ruger
$30.00This is a factory new never fired Ruger MK IV stripped barreled receiver chambered for .22 LR. This upper comes with adjustable sights and a 6" stubby pencil profile barrel. The push-button takedown...$30.00 -
LMT Defense - Full-Auto .308 Bolt Carrier Group - LM308DA
LMT Defense
MSRP: $620.00$575.10The LMT Defense Full-Auto .308 Bolt Carrier Group (LM308DA) is a mil-spec 7.62×51 NATO bolt carrier group engineered for LMT's MWS (Modular Weapon System) platform. Full-auto rated for maximum...MSRP: $620.00$575.10 -
Out of stockOn Sale
LMT Defense - Buffer Tube Kit - .308 - #LM308BTK
LMT Defense
MSRP: $152.00Now: $136.80Was: $144.00The LM308BTK LMT Defense MWS Buffer Tube kit is perfect for those building a weapon on a budget or over time. Get what you need with out parts you dont. This kit is operation ready with our MWS, dry...MSRP: $152.00Now: $136.80Was: $144.00 -
Out of stock
VLTOR - Modular Upper Receiver - MUR-1A
Vltor Weapon Systems
MSRP: $269.95$242.96The VLTOR MUR-1A Modular Upper Receiver is a premium mil-spec upper receiver for AR-15 builds, machined from 7075 T6 aluminum with a Type III hard anodize finish for outstanding strength and...MSRP: $269.95$242.96 -
VLTOR - Set Screw Gas Block - 0.625" to 0.750" Bore GB-S
Vltor Weapon Systems
$64.95The VLTOR Set Screw Gas Block (GB-S) is a low-profile, steel gas block engineered to replace the standard front sight base on AR-15 barrels, allowing use of free-float handguards without obstruction...$64.95 -
Out of stock
VLTOR - MK14/EBR Stock Adapter - #RE-EBR
Vltor Weapon Systems
$456.95The RE-EBR VLTOR Stock Adaptor was developed specifically for the Sage International MK14 Enhanced Battle Rifle chassis. This stock adaptor provides flexibility and comfort, as it allows for...$456.95 -
VLTOR - 7-Position A5 Receiver Extenstion - RE-A5
Vltor Weapon Systems
$56.66The VLTOR RE-A5 7-Position A5 Receiver Extension is the buffer tube component of VLTOR's innovative A5 system, designed for use with VLTOR's A5 buffer and spring for improved cycling characteristics...$56.66 -
VLTOR - 5-Position AR-15 Receiver Extension - RE-1
Vltor Weapon Systems
$51.95The VLTOR RE-1 5-Position Receiver Extension is a mil-spec diameter carbine buffer tube replacement for AR-15/M4 pattern rifles, providing the standard 5-position length of pull adjustment range in a...$51.95