Designed with meticulous attention to detail and built to Mil-Spec dimensions, this AR-15 Lower Parts Kit from USPA offers uncompromising quality and ensures a flawless interface with your lower receiver components. Crafted with precision engineering, this kit is the ideal choice for firearms enthusiasts seeking the utmost reliability and performance.

AR-15/M16 Carbine Mil-Spec Buttstock Kit

Adding an Adjustable Stock to your rifle build is an essential piece to balancing your rifle & improving a shooter’s comfort while in use. Stocks come in all shapes and sizes, a few things to be mindful of when picking your next adjustable stock is what personal application you will be putting your rifle through. Running Drills, Clearing Rooms, Competition Shooting, Hunting, Long Range, Bench shooting, or whatever other application you may need to use your rifle in. Having a comfortable and well-balanced & portable rifle starts with stock.