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 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)...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...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...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...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,...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...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...MSRP: $250.00$231.75 -
LMT Defense - Carbine Length AR15 Polymer Handguard Set - LMP154G
LMT Defense
$66.30The LMT Defense Carbine Length AR15 Polymer Handguard Set (LMP154G) is a mil-spec drop-in polymer handguard set for standard AR-15 carbine builds. Designed as a lightweight, durable, and...$66.30 -
Out of stock
LMT Defense - 5.56 Gen 2 Enhanced Piston Full-Auto Bolt Carrier Group - L7D3CPE
LMT Defense
MSRP: $468.00$425.70The LMT Defense 5.56 Gen 2 Enhanced Piston Full-Auto Bolt Carrier Group (L7D3CPE) is LMT's premium piston BCG designed for the MRP-L platform's short-stroke piston barrels. The Gen 2 enhanced design...MSRP: $468.00$425.70 -
LMT Defense - Standard 5.56 Full-Auto Bolt Carrier Group - #R-L7D3
LMT Defense
$304.20Full Auto Bolt Carrier Group, 5.56×45 (.223) The L7D3 is the perfect BCG for a Mil-Spec build or upgrade from sub-par equipment. LMT Defense has made the full-auto M16/M4 BCG and its components for...$304.20 -
LMT Defense - MRP-L Quad Rail 13.25" AR15 Upper Receiver - L7RA1A
LMT Defense
$940.50The LMT Defense MRP-L Quad Rail (Picatinny) 13.25" AR15 Upper Receiver (L7RA1A) features the patented LMT Monolithic Rail Platform (MRP™) — the upper receiver and handguard are machined from a single...$940.50 -
LMT Defense - MRP-L Quad Rail 9.25" AR15 Upper Receiver - L7S1A
LMT Defense
$890.10The LMT Defense MRP-L Quad Rail (Picatinny) 9.25" AR15 Upper Receiver (L7S1A) features the patented LMT Monolithic Rail Platform (MRP™) — the upper receiver and handguard are machined from a single...$890.10