Mega Machine Shop, whose forged AR 15 upper and lower receivers are popular with black rifle enthusiasts has just released its new billet AR-15 lower receiver. Made of 7075-T6 aluminum and featuring machined angular lines and grip points around the magwell front, it also incorporates an enlarged trigger guard to accommodate gloved hands.
Many feel there are advantages to the billet method of production which is essentially machining a block of alloy from scratch and dimensional inconsistencies can be avoided which sometimes occur with the forging method, in which the receiver is hammered into shape while heated.
Rainier Arms currently has the billet lower available for $175.00
-Mike Perry
