The AR-STONER Complete 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 parts used in an AR-15 lower receiver to ensure smooth and reliable operation with an upgraded pistol grip. 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. Grip Style Options:Similar in concept to the MOE-K, the Magpul MOE-K2 (Magpul Original Equipment) is a drop in upgrade for AR15/M4 pistol grips with a more vertical grip angle optimized for short LOP weapons that bring the primary hand in closer to the shooter's body. With an aggressive new texture for positive weapon control, compatibility with optional Storage Cores for gear stowage, and...