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The LMT Defense MRP Locking Screw 2-Pack (R-L7S1D) provides genuine OEM replacement locking screws for LMT's Monolithic Rail Platform (MRP) barrel retention system. These are the proprietary locking bolts that secure the barrel extension inside the MRP...

The LMT Defense Rail Mounted M203 Receiver (L2B1) is a 40mm grenade launcher receiver engineered for mounting to any standard 1913 Picatinny rail. Unlike the classic barrel-mounted M203, the L2B1 uses a rail-mounted design with three recoil lugs and...

The LMT Defense Classic M203 Receiver (LMP300E) is a mil-spec 40mm under-barrel grenade launcher receiver designed for M16/M4 platform rifles. This Type 1 barrel-mounted receiver accepts standard M203 barrels (sold separately) and is compatible with the...

The 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...

The 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...

The 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,...

The LMT Defense 7.62×51mm 16" LW Chrome Lined MWS Barrel Assembly (R-LM308B116) is the lightweight version of LMT's standard 16" .308 MWS barrel, engineered to reduce overall rifle weight without sacrificing durability or performance. The lightweight...

The LMT Defense MARS-L Stripped AR15 Lower Receiver (R-M7SL) is the foundation of the legendary LMT MARS® system. The LMT® Modular Ambidextrous Rifle System (MARS®) lower receiver sets a new standard for ambidextrous AR-15 controls. The MARS-L features...

The 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...

The 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...

The 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...

The 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...