The same great stripped lower, with a little bit lower price due to some cosmetic or trim issues. What makes this stripped lower different? The answer is simplea | the KE Arms KP-15 stripped lower receiver is a monolithic polymer AR-15 style lower receiver made from injection molded, 30% glass-filled nylon. Its unique design incorporates the buffer tube, pistol grip, trigger and a 13-inch (LOP) buttstock into the receiver as integral components. The result is an affordably priced, lightweight lower receiver. The KE Arms KP-15 stripped lower receiver uses a carbine buffer and spring. The take down and pivot pins have built-in detents, which increases durability by eliminatin Mfg: Ke Arms