Description
Made In USA 6 Position Mil-spec Diameter Receiver Extension Tube for AR15 Rifles
Extension Tube CNC Machined from 6061-T6 Aircraft Grade Aluminum with Precisely Rolled Threads for Durable Thread Engagement with Lower Receiver
Finished in Matte Black Type III Class II Hard Coat Anodize
Includes Mil-spec 6 Position Extension Tube, Carbine Buffer, Buffer Spring, Receiver End Plate, and Castle Nut