The new MKII version of the GGP-S Series brings a new level of customizability never before seen in rifle receivers. Not only can you build your own version of the Heavy or Light rifle, but you can use your favorite aftermarket parts to complete the weapon of your dreams. GGP Billet Receivers are precisely machined from 7075-T6 Aluminum for a perfect fit. The lower receiver includes GGP's ambidextrous bolt release as a standard feature, as well as a flared magwell and integral trigger guard. Start your build off right. FeaturesUpper and Lower AR-10 Receivers machined from a 7075-T6 Aluminum BilletAmbidextrous Bolt Release integrated into lower receiver (parts included)True Black Type III Class 2 Hard Coat AnodizeTighter than Mil-Spec tolerance, with critical tooling dimensions are held to within +/ - .001"Features a nylon tipped tensioning screw to ensure the solid fit between upper and lower maintains for years to comeFunctions with nearly all available DPMS pattern large fram...