Receivers & Frames
The foundation of your next custom build. Browse our selection of receivers and frames, including stripped lower receivers, forged/billet upper receivers, ambi controls, and serialized handgun frames to start your project legally and correctly.
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Out of stockOn Sale
FN America - SCAR 17S .308/7.62 13" Complete Barrel Assembly - 98814
FN America
Now: $1,499.00Was: $1,729.00The FN SCAR(R) barrel assemblies are cold hammer-forged, chrome-lined MIL-SPEC steel barrels with front sight assembly, gas block assembly, gas regulator, gas piston and flash hider installed...Now: $1,499.00Was: $1,729.00 -
LMT Defense - MARS-H Stripped AR10 Lower Receiver LM308AMSL Code "LMT20" at Checkout for 20% Off
LMT Defense
MSRP: $588.00$545.40Use Code "LMT20" at Checkout to Save 20% The LMT Modular Ambidextrous Rifle System (MARS) lower receiver offers ambidextrous controls to include the selector, magazine release and bolt catch and...MSRP: $588.00$545.40 -
LMT Defense - MARS-L DMR Complete AR15 Lower Receiver - M7DM4
LMT Defense
$1,100.00The LMT Defense MARS-L DMR Complete AR15 Lower Receiver (M7DM4) is purpose-built for designated marksman rifle (DMR) configurations. The LMT® Modular Ambidextrous Rifle System (MARS®) lower receiver...$1,100.00 -
LMT Defense - MARS-L PDW Complete AR15 Lower Receiver - M7DA4SH
LMT Defense
$1,019.70The LMT Defense MARS-L PDW Complete AR15 Lower Receiver (M7DA4SH) is a fully assembled, ready-to-build lower receiver featuring LMT's legendary MARS® ambidextrous control system. The LMT® Modular...$1,019.70 -
Out of stockOn Sale
LMT Defense - Defender-L Stripped Lower Receiver - #LMP149H
LMT Defense
MSRP: $195.00Now: $175.50Was: $180.90This stripped AR-15 lower is forged from highly durable 7075 aluminum and has a hardcoat anodized finish. It is fully compatible with Mil-Spec lower parts and made to the exacting tolerances LMT is...MSRP: $195.00Now: $175.50Was: $180.90 -
Out of stockOn Sale
LMT Defense - 16" Barreled Upper Receiver .223/5.56mm AR15 - L7UB1
LMT Defense
Now: $685.80Was: $706.50Standard flat-top upper receiver with 16″ chrome lined 1:7″ twist 5.56 barrel. Meeting todays military specifications, the L7UB1 is a near equivalent to the upper delivered on the US M4A1 5.56...Now: $685.80Was: $706.50 -
Out of stockOn Sale
LMT Defense - 14.5" .223/5.56mm AR15 Upper Receiver - L7D1
LMT Defense
Now: $685.80Was: $706.50LMT Defense standard flat-top upper receiver with 14.5″ chrome lined 1:7″ twist 5.56 barrel. Meeting todays military specifications, the L7D1 is a common equivalent to the upper delivered on the US...Now: $685.80Was: $706.50 -
LMT Defense - 10.5" Barreled Upper Receiver .223/5.56mm AR15 - L900L08
LMT Defense
MSRP: $762.00$706.50LMT Defense standard flat-top upper receiver with 10.5″ chrome lined 1:7″ twist 5.56 barrel. Comes with forward assist, port door, sling swivel, front sight post, and gas tube installed. Utilizes...MSRP: $762.00$706.50 -
LMT Defense - MRP-H Quad Rail 12.75" AR10/AR308 Upper Receiver - LM308B1
LMT Defense
MSRP: $1,274.00$1,181.70The LMT Defense MRP-H® Quad Rail (Picatinny) 12.5" AR10/AR308 Upper Receiver (LM308B1) is built around the patented LMT Monolithic Rail Platform (MRP™) engineered for large-caliber platforms...MSRP: $1,274.00$1,181.70 -
LMT Defense - MRP-H MLOK 12.5" AR10/AR308 Upper Receiver - R-LM308BML1
LMT Defense
$1,181.70The LMT Defense MRP-H® M-LOK 12.5" AR10/AR308 Upper Receiver (R-LM308BML1) is built around the patented LMT Monolithic Rail Platform (MRP™) engineered for large-caliber platforms. Receiver and...$1,181.70 -
LMT Defense - MRP-L MLOK 9.25" AR15 Upper Receiver - L7X1A
LMT Defense
$890.10The LMT Defense MRP-L M-LOK 9.25" AR15 Upper Receiver (L7X1A) features the patented LMT Monolithic Rail Platform (MRP™) — the upper receiver and handguard are machined from a single piece of forged...$890.10 -
LMT Defense - MRP-L MLOK 11.5" Shovelnose AR15 Upper Receiver - L7ZN2A
LMT Defense
MSRP: $1,014.00$940.50The LMT Defense MRP-L M-LOK 11.5" AR15 Upper Receiver (L7ZN2A) features the patented LMT Monolithic Rail Platform (MRP™) — the upper receiver and handguard are machined from a single piece of forged...MSRP: $1,014.00$940.50