Lower & Upper Receivers
Build your AR-15, AR-10, or precision long-range rifle exactly how you want it. Shop our high-quality stripped and complete lower and upper receivers, matched receiver sets, and enhanced buffer systems.
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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 carbine. The upper receiver itself features...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 M4A1 5.56 carbine. The upper receiver itself...Now: $685.80Was: $706.50 -
Out of stockOn Sale
LMT Defense - 10.5" Barreled Upper Receiver .223/5.56mm AR15 - L900L08
LMT Defense
MSRP: $762.00Now: $685.80Was: $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 the mil-spec barrel nut and delta ring...MSRP: $762.00Now: $685.80Was: $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. Receiver and handguard machined from a single piece of forged...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 handguard machined from a single piece of forged...$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 aerospace-grade aluminum, eliminating flex and providing...$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 aerospace-grade aluminum, eliminating flex and...MSRP: $1,014.00$940.50