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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Proof Research Carbon Fiber Q The Fix Barrel (Choose options below)
Proof Research
$1,199.00Proof Research Carbon Fiber Q The Fix Barrel is a precision-machined carbon fiber replacement barrel designed specifically for Q (Q LLC) The Fix bolt-action rifle. The Fix is Q's innovative chassis rifle that accepts AR-style magazines, and this Proof...$1,199.00 -
Proof Research - Carbon Fiber LMT MRP/MWS Conversion Barrels (Choose Options Below) (6mm 14.5" is Stainless Steel)
Proof Research
$1,100.00 - $1,375.00Proof Research Carbon Fiber LMT MRP/MWS Conversion Barrels (PROOF-BARRELS) are precision-engineered replacement barrel assemblies designed specifically for LMT (Lewis Machine & Tool) Modular Rail Platform (MRP) and Modular Weapon System (MWS) rifles...$1,100.00 - $1,375.00 -
Proof Research 20" 6.5 Creedmoor Carbon Fiber Barrel
Proof Research
$1,250.00The Proof Research 20" 6.5 Creedmoor Carbon Fiber Barrel (100042) represents the pinnacle of precision barrel technology, combining an aerospace-grade carbon fiber wrap over a 416R stainless steel core using Proof Research's patented manufacturing...$1,250.00 -
On Sale
Surefire Warden Fast-Attach 5.56/7.62 Blast Regulator - Non-NFA, Cerakote Finish
Surefire
MSRP: $329.00Now: $296.00Was: $329.00The SureFire Warden Fast-Attach 5.56/7.62 Blast Regulator — Black, Non-NFA (WARDEN-BK) is SureFire's Warden blast regulator — a non-NFA device that attaches to SureFire WARCOMP and other Fast-Attach-equipped muzzle devices to dramatically reduce the...MSRP: $329.00Now: $296.00Was: $329.00 -
Knight's Armament - Vertical Forward Pistol Grip - Black - 97098
Knights Armament Company
$83.73The Knight's Armament Company Vertical Forward Pistol Grip — Black (KAC PN: 97098) is KAC's mil-spec-quality vertical foregrip for MIL-STD-1913 Picatinny rail handguards. The KAC vertical grip provides a positive hand placement on the handguard for...$83.73 -
Out of stockOn Sale
Surefire - Warcomp 5.56 Closed Tine Birdcage - WARCOMP-556-CTN-1/2-28
Surefire
Now: $152.00Was: $169.00The SureFire WARCOMP 5.56 Closed Tine Flash Hider/Suppressor Adapter — 1/2x28 (WARCOMP-556-CTN-1/2-28) is SureFire's closed-tine variant of the WARCOMP for 5.56mm rifles. The "CTN" (Closed Tine) design eliminates the open-tine profile that can snag on...Now: $152.00Was: $169.00 -
Daniel Defense .223REM/5.56NATO Lower Receiver Parts Kit - 05-013-21007
Daniel Defense
MSRP: $127.00$122.00The Daniel Defense Lower Parts Kit, Semi-Auto is for those interested in assembling their own AR15. Although there are many manufacturers of so-called MIL-SPEC parts, we have gone to great lengths to ensure the parts we provide are of the...MSRP: $127.00$122.00 -
Out of stock
LMT Defense - 5.56 Receiver Extension - #LMP259A
LMT Defense
MSRP: $53.40$49.59Lewis Machine & Tool 5.56 receiver extension. Our milspec receiver extensions, or buffer tubes exceed the quality standards of others in the industry. We time our tubes to have a “no guess” fit with LMT lower receivers and follow up the...MSRP: $53.40$49.59 -
LMT Defense - 5.56 Lower Parts Kit Light (No Trigger Group) - R-LM556LPKL
LMT Defense
MSRP: $152.00$141.30The LMT Defense 5.56 Lower Parts Kit Light (R-LM556LPKL) provides all the mil-spec small parts needed to complete an AR-15 lower receiver build — minus the trigger group. This "light" version is ideal for builders who already have a preferred trigger...MSRP: $152.00$141.30 -
Out of stockOn Sale
BT Atlas - Bipod Super Cal - BT72-LW17
BT Atlas
Now: $439.95Was: $569.95The BT72-LW17 Super CAL (Cant And Loc) Atlas Bipod does not PAN. This model mounts directly to any 1913 style Picatinny rail via the included ADM-170-S Lever. Includes patented 45° leg positions, non-rotating legs, optional quick change feet and...Now: $439.95Was: $569.95 -
Out of stock
LMT Defense - EURO AXLE Two Stage Semi-Auto Trigger Group - LMP2400EUS
LMT Defense
MSRP: $250.00$231.75Lewis Machine & Tool EURO model Two Stage AXLE semi-automatic Trigger Group for AR-10 and AR-15 pattern firearms. The EURO AXLE trigger features an approximate 4.5lb pull the provides a clean and precise break while still be safe to manipulate with...MSRP: $250.00$231.75 -
LMT Defense - Semi-Auto Axle Trigger Group - LMP2400ES
LMT Defense
MSRP: $250.00$231.75The LMT Defense Semi-Auto AXLE Trigger Group (LMP2400ES) is one of the finest combat triggers in the firearms industry. The AXLE is a patented two-stage trigger system that blends the best features of quality fire control groups — Wire EDM precision...MSRP: $250.00$231.75