Bison Armory carries a selection of forged and billet lower receivers for BR-15 (6.8 SPC) platform rifles. We carry only the Mega billet and monolithic billet receivers for BR-X (7.62 NATO) platform rifles.
The Bison Armory mil-spec forged lower receiver is compatible with any high-quality mil-spec forged upper receiver on the market. The receiver is perfectly finished with hard-coat anodizing to give it a deep black appearance. Caliber is marked Multi.
We also currently offer forged lower receivers from Mega Arms that match their upper receivers.
Mega Arms forged lower receiver
Bison Armory uses billet lowers from Mega Arms. We use the Mega model GTR-3H that is a perfect match to a Mega billet or billet monolithic upper receiver. Caliber is marked Multi.
Mega Arms billet lower receiver
Mega billet lower with Magpul CTR stock and MOE grip
Mega MA-TEN billet lower receivers must be mated with a MA-TEN billet upper receiver or MA-TEN billet monolithic upper receiver.
Mega MA-TEN billet receiver set
Bison Armory stocks all the components you need to complete your lower receiver. Buy the components as a kit and finish the job yourself, or let us do it for you. Either way you will get a perfect lower receiver for your Bison Armory upper assembly.
We carry some of the top names in lower receiver components, including Magpul, Vltor, Geissele, Troy, and JP Enterprises.