Stockpile Defense Mod 2 lower receivers are manufactured for us by our friends over at PWS. We loved their design so much, we asked for a variance and they did it! What makes them so great, you ask? Well, most don’t know but these Mod 2 lowers are one of the only forged, AMBI lowers available on the market today. And because it’s made by PWS, you know they’re held to tight tolerances and with great quality controls. These lowers are a perfect way to get the strength of a forged lower with the aesthetics of a billet. Finished off and anodized per Mil-Spec (MIL-A-8625F) which is a Type III Class 2 hard anodizing process. Machined right here in Boise from proprietary forgings made specifically for PWS! Do not hesitate to build your next gas or piston upper off of these beautiful lowers. All proprietary AMBI parts are included with the lower.