The Armageddon Gear Milspec Receiver Extension Kit provides everything you'll need to mount a Milspec-diameter buttstock to your AR15 lower receiver. Every part in this kit is from a current DOD-contract manufacturer supplying buttstock and buffer components to the US military. The included receiver extension (buffer tube) has six positions rather than the four positions used on the military-issued tubes, but is otherwise made to the same dimensions and tolerances with the same 7075 aluminum and Milspec hard anodize finish that our service weapons receive.
- Milspec-Diameter 6-Position Receiver Extension
- Stainless Steel Milspec Carbine Buffer Spring
- Carbine Buffer (3.0 oz)
- Phosphate Steel Receiver End Plate
- Phosphate Steel Castle Nut