Lower Receivers
Explore our wide selection of firearm receivers and frames, designed to provide the foundation for customizing your perfect firearm. From AR-15 and pistol frames to lower receivers, we offer high-quality, durable options for various calibers and builds. Whether you're a seasoned gunsmith or a DIY enthusiast, our premium receivers ensure precision and reliability for your next project. Shop now for trusted brands and materials that meet your exact specifications, all at competitive prices.
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On Sale
Colt M4 Commando 5.56mm Semi-Auto Lower Receiver Assembly
Colt
Now: $500.00Was: $699.00Proper "M4 Commando" model designation engraved on the lower receiver with LE prefix serial number (example: LE123456). Limited availability of government contract exclusive product. Factory Colt M4...Now: $500.00Was: $699.00 -
Out of StockOn Sale
Colt Carbine 5.56mm Semi-Auto Lower Receiver Assembly
Colt
Now: $419.00Was: $650.00ALL Semi-Auto Colt Rifle Receivers will be marked "Carbine" as of Q4 2020; furniture may vary. Description: Factory Colt complete lower receiver assembly to build your AR15, M16 or M4. Compatible...Now: $419.00Was: $650.00 -
On Sale
Colt SCW Carbine 5.56mm Semi-Auto Lower Receiver Assembly with Parts
Colt
Now: $1,199.00Was: $1,399.00Proper "SCW Carbine" model designation engraved on the lower receiver with SCW suffix serial number (example: 123456SCW). Limited production of 800, exclusive LE/MIL product for ArmsUnlimited. Colt...Now: $1,199.00Was: $1,399.00 -
On Sale
Colt AR15/SMG 9mm Semi-Auto Lower Receiver Assembly
Colt
Now: $500.00Was: $599.00Colt AR-15 / SMG 9mm Semi-Auto Lower Receiver Assembly SP63382 Factory Colt SP63382 complete lower receiver assembly for building a 9mm carbine or SMG-style firearm. Laser engraved “COLT AR-15 9mm...Now: $500.00Was: $599.00 -
On Sale
Colt M5 Carbine 5.56mm Semi-Auto Lower Receiver Assembly | Full-Ambidextrous
Colt
Now: $599.00Was: $799.00Factory Colt M5 Carbine complete semi-auto lower receiver assembly with fully ambidextrous controls to build your personalized M5. Compatible with all mil-spec AR15/M4/M5/M16 upper receivers...Now: $599.00Was: $799.00 -
On Sale
Colt SCW Pistol 5.56mm Semi-Auto Lower Receiver Assembly with Parts
Colt
Now: $799.00Was: $999.00"SCW Carbine" model designation engraved on the lower receiver with SCW suffix serial number (example: 123456SCW). Limited production of 800, exclusive for ArmsUnlimited. Colt installed correct...Now: $799.00Was: $999.00 -
Out of Stock
Colt AR15A4 5.56mm Semi-Auto Lower Receiver Assembly
Colt
$519.00Factory Colt complete lower receiver assembly to build your AR15, M16 or MK12. Compatible with all mil-spec AR15/M4/M16 upper receivers. Manufactured to truly meet and exceed all Mil Spec standards...$519.00 -
Out of Stock
B&T Semi-Auto Standard Trigger Group/Lower for APC9/GHM9
B&T
$420.00Factory original B&T semi-auto trigger group assembly for APC9, APC9K, APC9SD, or GHM9.$420.00 -
Out of StockOn Sale
Knights SR25 V2 7.62mm Lower Receiver Assembly
Knights Armament
Now: $1,440.00Was: $1,595.00The Knights Armament SR25 V2 Lower Receiver Assembly features an ambidextrous bolt release, selector lever, and magazine release, offering left-handed users the ergonomic advantages inherent to...Now: $1,440.00Was: $1,595.00 -
Out of StockOn Sale
Colt M4 Carbine 5.56mm Semi-Auto Lower Receiver Assembly
Colt
Now: $420.00Was: $650.00Factory Colt complete lower receiver assembly to build your AR15, M16 or M4. Compatible with all mil-spec AR15/M4/M16 upper receivers. Manufactured to truly meet and exceed all Mil Spec standards...Now: $420.00Was: $650.00 -
Out of Stock
Knights SR15 5.56mm Lower Receiver Assembly
Knights Armament
$1,500.00The Knights Armament SR15 Lower Receiver Assembly features an ambidextrous bolt release, selector lever, and magazine release, offering left-handed users the ergonomic advantages inherent to...$1,500.00 -
Out of Stock
B&T Semi-Auto SIG320 Trigger Group/Lower for APC9/GHM9
B&T
$420.00Factory original B&T semi-auto trigger group assembly for APC9, APC9K, APC9SD, or GHM9 that accepts SIG 320 magazines with no additional modifications!$420.00 -
Out of Stock
Colt Law Enforcement Marked M4 Lower
$1,099.00Colt M4LE Law Enforcement Lower Receiver – Used These are genuine Colt M4LE lower receivers, roll-marked with the iconic Colt pony logo and bearing the original "Colts Law Enforcement /$1,099.00