The AR-STONER Complete Enhanced Lower Receiver Parts Kit for the AR-15 platform is the perfect choice if you are looking to build your next AR-15. This kit includes all the standard mil-spec small parts used in an AR-15 lower receiver to ensure smooth and reliable operation with an upgraded pistol grip and fire control group. The AR-STONER complete lower parts kits offers the rugged reliability of AR-Stoner, with the upgraded performance you expect from Magpul where it really matters. This winning combination makes this kit an economical way to build a complete lower, less a stock assembly of your choice and a stripped lower receiver. The AR-STONER Two Stage Enhanced Trigger Group for the AR-15 and LR-308 (Small Pin .154") is a mil-spec replacement trigger group featuring a non-adjustable trigger pull. With a first stage pull weight of 2.0lbs and a second stage of 2.5lbs this trigger is perfect for tactical applications or long range precision shooting. The hammer and trigger a...