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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KAC Knights Armament Company SR-25 A3 6.5 CM 22" Upper Receiver 100223
Knights Armament Company
$3,283.20The KAC SR-25 A3 complete upper receiver is chambered in 6.5 Creedmoor and built for precision long-range shooting on the SR-25/AR-10 platform. It arrives complete and drop-in ready for compatible...$3,283.20 -
Out of stock
KAC Knights Armament Company SR-15 KS2 14.5" 5.56 NATO Upper 121436
Knights Armament Company
$1,800.00This is a new Knights Armament Company SR-15 KS2 14.5” complete upper receiver kit chambered in 5.56 NATO. This upper receiver features a 14.5” cold hammer forged, chrome lined, 1:7” rate of twist,...$1,800.00 -
Out of stock
KAC Knights Armament Company SR-25 KS7 14.5" 6.5 Creedmoor Upper 116741
Knights Armament Company
$3,312.00This is a new Knights Armament Company SR-25 KS7 14.5” complete upper receiver kit chambered in 6.5 Creedmoor. This upper receiver features a 14.5” cold hammer forged, dimpled hybrid barrel, medium...$3,312.00 -
LMT Defense MRP-L M-LOK 9.25" "Grenadier" Upper Receiver L7SXG1A
LMT Defense
$940.50The LMT Defense MRP-L M-LOK 9.25" "Grenadier" Upper Receiver (L7SXG1A) is LMT's newest 2026 MRP-L upper receiver, purpose-designed for under-barrel launcher integration and versatile accessory...$940.50 -
LMT Defense MRP-L M-LOK 9.25" "Hybrid" Upper Receiver L7SX1A
LMT Defense
$940.50The LMT Defense MRP-L M-LOK 9.25" "Hybrid" Upper Receiver (L7SX1A) is LMT's newest 2026 addition to their Monolithic Rail Platform lineup — a versatile carbine-length upper designed for both piston...$940.50 -
Ruger 10/22 Stripped Aluminum Receiver VCSCU-0130
Ruger
$65.00This is a new Ruger factor stripped aluminum receiver compatible with 10/22 pattern firearms. Black Stripped Made in the USA Note: These are stripped receivers so they will not come with any...$65.00 -
LMT Defense LMT Defense - MRP-H Quad Rail 12.75" AR10/AR308 Complete Upper Receiver Bundle BFCLMT-H308P16P
LMT Defense
$2,399.99*Discounts do not apply* The LMT Defense MRP-H Quad Rail 12.75" AR10/.308 Complete Upper Receiver Bundle (BFCLMT-H308P16P) is a complete, ready-to-mount LMT AR-10 piston upper receiver assembly...$2,399.99 -
Ruger - 10/22 Stripped Aluminum Receiver - SCU-0129
Ruger
$65.00This is a new Ruger factor stripped aluminum receiver compatible with 10/22 pattern firearms. Black Stripped Made in the USA Note: These are stripped receivers so they will not come with any...$65.00 -
Out of stock
KAC Knights Armament Company SR-15 KS-1 5.56mm Upper Receiver Kit 13.7 121435
Knights Armament Company
$2,088.00Knight's Armament 5.56mm SR-15 KS-1 13.7" Upper Receiver Kit (P/N: 121435) delivers cutting-edge performance engineered as the commercial variant of the official U.K. Special Forces rifle contract...$2,088.00 -
Out of stock
KAC Knights Armament Company SR-25 K5 7.62mm Upper Receiver Kit 14.5" 121487
Knights Armament Company
$3,312.00Knight's Armament 7.62mm SR-25 K5 14.5" Upper Receiver Kit (P/N: 121487) delivers factory-grade performance engineered for mid-range precision and tactical versatility. Features a 14.5-inch cold...$3,312.00 -
Ruger 10/22 Stripped Receiver with Rail and Cleaning Hole in Rear VCSCU-0145R
Ruger
$65.00The Volquartsen Ruger 10/22 Receiver with Rail is a precision-manufactured replacement receiver designed for compatible Ruger 10/22 rifles. Featuring a durable black finish and integrated...$65.00 -
Out of stockOn Sale
Glock .40 S&W OEM Complete Frames - G-40S&W-Frame
Glock
Now: $234.78Was: $249.99Glock 40 S&W complete OEM frames. Please note these will ship to an FFL.Now: $234.78Was: $249.99