Trinity Force MNTLU04B AR15 Mil Spec Receiver Butt Stock Extention Buffer Tube Kit
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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. It is also compatible with most AR 308/AR 10 rifles but requires a modified buffer and spring for proper operation.
Length (in): 11
Receiver Extension Type: Mil-Spec
Weight (oz): 9.9
Coating Type: Hard Coat Anodized Finish
Material: Aircraft Grade Aluminum, High Strength Steel