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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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 heat-resistant replacement for mil-spec carbine-length handguards,...$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 offers improved reliability, reduced carrier tilt, and...MSRP: $468.00$425.70 -
Out of stock
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 years replacement parts for the United States hard...$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 piece of forged aerospace-grade aluminum, eliminating...$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 piece of forged aerospace-grade aluminum, eliminating...$890.10 -
LMT Defense - MRP-L MLOK 13.25" AR15 Upper Receiver - L7Y1A
LMT Defense
$940.50The LMT Defense MRP-L M-LOK 13.25" AR15 Upper Receiver (L7Y1A) features the patented LMT Monolithic Rail Platform (MRP™) — the upper receiver and handguard are machined from a single piece of forged aerospace-grade aluminum, eliminating flex and...$940.50 -
LMT Defense - MRP-L MLOK 11.5" Specwar - AR15 Upper Receiver - L7Z1A
LMT Defense
$940.50The LMT Defense MRP-L M-LOK 11.5" AR15 Upper Receiver (L7Z1A) features the patented LMT Monolithic Rail Platform (MRP™) — the upper receiver and handguard are machined from a single piece of forged aerospace-grade aluminum, eliminating flex and providing...$940.50 -
On Sale
Surefire Warcomp 7.62 5/8x24 Flash Hider/Suppressor - WARCOMP-762-5/8-24
Surefire
MSRP: $169.00Now: $152.00Was: $169.00The SureFire WARCOMP 7.62 5/8x24 Flash Hider/Suppressor Adapter (WARCOMP-762-5/8-24) is SureFire's multi-function muzzle device for 7.62mm rifles — simultaneously functioning as a highly effective 3-pronged flash hider and the mounting interface for...MSRP: $169.00Now: $152.00Was: $169.00 -
LMT Defense - 5.56mm 11.5" Chrome Lined MRP Barrel Assembly - L7TA1B
LMT Defense
$554.40The LMT Defense 11.5" Chrome Lined 5.56mm MRP Barrel Assembly (L7TA1B) is engineered specifically for LMT's Monolithic Rail Platform (MRP) upper receivers. This 11.5-inch, 5.56×45 (.223) barrel features a 1:7" right-hand rifling twist, low-profile gas...$554.40 -
LMT Defense - Tactical Charging Handle Assembly - AR15 - LMP103T
LMT Defense
MSRP: $97.00$90.00The LMT Defense Tactical 5.56 Charging Handle (LMP103T) is an M4 Charging Handle Assembly with an Enhanced Tactical Latch — offering a significant upgrade over mil-spec charging handles. The enlarged tactical latch provides a more positive grip and...MSRP: $97.00$90.00 -
LMT Defense - Ambidextrous AR15 5.56 Charging Handle - R-LMP103TA
LMT Defense
MSRP: $108.00$100.35The LMT Defense Ambidextrous 5.56 Charging Handle (R-LMP103TA) features enhanced tactical latches on both sides for true ambidextrous operation. Dead-stop latches reduce tension on latch pins, extending service life while allowing fast, positive...MSRP: $108.00$100.35 -
Proof Research Carbon Fiber AR 15 Barrel 6mm ARC 18" 128671
Proof Research
$999.00Engineered for shooters who demand precision without the weight penalty, this 18" PROOF Research barrel pairs a 1:7.5 twist rate with a rifle-length gas system for smooth, reliable cycling across a range of loads. Key Specifications: Length: 18" Twist...$999.00