Discount Mil-Spec Carbine Buffer / Receiver Extension Kit

The AR Receiver Extension Kit is constructed from aircraft grade aluminum with rolled threading. The buffer tube has been hard coat anodized for maximum corrosion and wear resistance. A standard buffer spring and 3oz carbine buffer are included as well as a castle nut and lower receiver end plate.This assembly kit will fit on all Mil-Spec AR-15 lower receivers. Mil-Spec Carbine Buffer Tube / Receiver Extension 6 Position Aircraft Grade Aluminum Carbine Buffer Spring Castle Nut/Receiver Nut Mil-Spec Receiver End Plate Carbine Recoil Buffer Anti-rotation buffer retaining tabs may vary (depending on batch)