Now Blackheart International is making its stripped lower receivers available for those looking to upgrade their existing AR rifle, or build their own from scratch. The BHI-15 Billet Lower ...

Here are three unique AR-15 lower receivers and a couple ... The company’s Evolve receiver set comes machined from 7075 billet aluminum and treated with a gray KG Industries protective coating.

Blackheart International's lower receiver assemblies provide a solid foundation for any AR-style ... flat top or billet aluminum Slick-Side receiver. Also available is the BHI-15 MIL-SPEC upper ...

The Folding Lower Receiver (FLR ... from 7075-T6 aircraft grade billet aluminum § Ships with standard weight proprietary buffer § Accepts standard AR-15 magazines § Matte black hard-coat ...

(U.S. Air Force photo by Tech. Sgt. Joseph Swafford Jr./Released) Northtechdefense.com has just released their new AR15 billet lower receiver. Northtech refers to it as Model# NT15S, but ...

feature=player_embedded&v=tAW72Y_XPF4] Defense Distributed, a group run primarily by gunsmith Cody Wilson, has released a video of an AR-15 with a 3D-printed lower receiver firing off over 600 ...

Defense Distributed recommends using the 7075 Ares Armor Raw 80% Lower AR-15 Billet." Wilson launched ... it's good at finishing an 80 percent lower receiver for an AR-15 in under an hour." ...

There are six key elements to your AR-15 profile—the lower receiver, the upper receiver ... distinct variations on the lower. They are the billet aluminum lower, the cast aluminum lower ...