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
$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. This specialized tool is required for proper barrel...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: 20 in / 508 mm Barrel Material:...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 makes switching uppers easier than switching from...$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 durability, this BCG exceeds the demands of high-volume...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 film lubed, buffer tube, recoil spring and H3 buffer...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 corrosion resistance. The MUR-1A is a stripped upper receiver...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. The set-screw design (versus pinned) enables tool-free...$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 installation of any mil-spec M4/AR15 buttstock onto a SAGE EBR...$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 on AR-15 carbines. The 7-position design provides...$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 high-quality, precision-machined tube. VLTOR's...$51.95