The new MKII version of the GGP-S Series brings a new level of customizability never before seen in GGP rifle receivers. The Billet Receivers are precisely machined from 7075-T6 Aluminum for a perfect fit. The lower receiver includes an ambidextrous bolt release as a standard feature" as well as a flared magwell and integral trigger guard. Start your build off right.

Features:
7075-T6 Aluminum
Ambidextrous Bolt Release
Tighter than Mil-Spec tolerance