I've had a Quentin Defense US Army Edition billet lower laying around almost a year so when I got a PSA LBK last week it was time to finish it up. Easiest lower build I've done yet, no roll pins to punch in and no detents placed in orbit. I'm impressed with the PSA kit, great quality and a nice fit in the QD lower. Also this is the best milspec trigger I've felt in quite a while, definitely heavy but no creep and breaks crisp. Anyway, nothing out of the ordinary, just an easy build. Now for the pics! Nicely flared magwell "Quentin Defense billet stripped lower receiver. ***US ARMY EDITION*** Model number is "US ARMY". Serial numbers all start with USA. CNC machined from a solid billet block of aerospace grade aluminum. Type III class II hard anodized per the mil spec."