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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LMT Defense - Rail Mounted M203 Receiver + M203 9" Barrel Bundle - L2B1-LMP380

$2,341.00

LMT Defense
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LMT Defense - Rail Mounted M203 Receiver - L2B1

$1,616.40
$1,743.00

LMT Defense
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LMT Defense - Flat Top Upper Receiver - L7D1A

$211.50

LMT Defense
Only 4 left in stock

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Colt - Upper Receiver 223REM/556NATO - SP63528

$179.99

Colt
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LWRC - Enhanced Lower Receiver - Black - ICEL5B

$699.99

LWRC
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LMT Defense - AR10 Lower MARS-H Complete - LM308AM

$1,363.50
$1,470.00

LMT Defense
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Fostech Origin-12 SBS Complete Upper Receiver - 12GA 7009

$1,197.13 $920.00

Fostech
Only 2 left in stock

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Sons of Liberty Gun Works - M76 9.5" M-LOK Wedge Lock Rail - M76-9.5

$315.00

Sons of Liberty Gunworks
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Sons of Liberty Gunworks - M76 15" M-LOK Wedge Lock Rail - M76-15

$345.00

Sons of Liberty Gunworks
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LMT Defense - Complete MARS-L SOPMOD Lower Receiver - M7DA4

$969.30

LMT Defense
Only 3 left in stock

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Daniel Defense .223REM/5.56NATO Lower Receiver Parts Kit - 05-013-21007

$122.00
$127.00

Daniel Defense
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LMT Defense - MARS-L Stripped AR15 Lower Receiver - R-M7SL

$352.35
$380.00

LMT Defense
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LMT Defense - MRP-L Quad Rail 13.25" AR15 Upper Receiver - L7RA1A

$940.50

LMT Defense
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LMT Defense - MRP-L Quad Rail 9.25" AR15 Upper Receiver - L7S1A

$890.10

LMT Defense
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LMT Defense - MRP-L MLOK 13.25" AR15 Upper Receiver - L7Y1A

$940.50

LMT Defense
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LMT Defense - MRP-L MLOK 11.5" Specwar - AR15 Upper Receiver - L7Z1A

$940.50

LMT Defense
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LMT Defense MRP-L M-LOK 9.25" "Grenadier" Upper Receiver L7SXG1A

$940.50

LMT Defense
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LMT Defense MRP-L M-LOK 9.25" "Hybrid" Upper Receiver L7SX1A

$940.50

LMT Defense
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Ruger 10/22 Stripped Aluminum Receiver VCSCU-0130

$65.00

Ruger
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Ruger - 10/22 Stripped Aluminum Receiver - SCU-0129

$65.00

Ruger
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SONS OF LIBERTY GUN WORKS - STRIPPED UPPER RECEIVER - HARDCOAT TYPE III ANODIZED - UPPER-STRIPPED

$150.00

Sons of Liberty Gunworks
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LMT Defense - MRP-L Compact Length AR-15 Upper Receiver - M-LOK - 7.25" - L7NX1A

$890.10

LMT Defense
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LMT Defense - MWS .308 M-LOK Upper Receiver - 15.3" - LM308BML4A

$1,413.90
$1,525.00

LMT Defense
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LMT Defense - MARS-H Stripped AR10 Lower Receiver - #LM308AMSL

$545.40
$588.00

LMT Defense
Only 4 left in stock

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LMT Defense - MARS-L DMR Complete AR15 Lower Receiver - M7DM4

$1,100.00

LMT Defense
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LMT Defense - MARS-L PDW Complete AR15 Lower Receiver - M7DA4SH

$1,019.70

LMT Defense
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LMT Defense - MRP-H Quad Rail 12.75" AR10/AR308 Upper Receiver - LM308B1

$1,181.70
$1,274.00

LMT Defense
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LMT Defense - MRP-H MLOK 12.5" AR10/AR308 Upper Receiver - R-LM308BML1

$1,181.70

LMT Defense
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LMT Defense - MRP-L MLOK 9.25" AR15 Upper Receiver - L7X1A

$890.10

LMT Defense
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LMT Defense - MRP-L MLOK 11.5" Shovelnose AR15 Upper Receiver - L7ZN2A

$940.50
$1,014.00

LMT Defense