Upgrade your AR-15 with our Two-Position Buttstock Kit, a comprehensive package that includes everything you need for enhanced performance and comfort. Crafted with precision, this kit ensures stability, reliable recoil, and a classic look. Whether you’re a seasoned shooter or just starting out, our Two-Position Buttstock Kit meets the demands of discerning firearm enthusiasts. INCLUDES Brownells 2-Position Mil-Spec Buffer Tube (SKU: 080001363) B5 Collapsible Buttstock (SKU: 078000498 Brownells AR-15 Carbine Buffer (SKU: 078000337) Brownells CAR-15 Receiver End Plate (SKU: 080000290) Luth-AR Carbine Castle Nut (SKU: 100028004) Rock River Arms Carbine Length Recoil Spring (SKU:739000005)