FAB Defense M4 Buffertube Assembly MIL-SPEC for AR15 system.
Machined MIL-SPEC Aluminum Receiver Extension Tube Kit accepts All M4-style MIL-SPEC Adjustable Carbine Buttstocks and Most Commercials.
Six Precision-Machined Notches On the Underside Provide Plenty of Options for Setting Length-Of-Pull.
Perfect for a Custom Build, Installing a MIL-SPEC or Commercial Stock on a Civilian Carbine, or Updating a Fixed-Stock Rifle With an Adjustable M4 Stock
Machined From a Lightweight Aluminum Extrusion Then Hard Coat Anodized, and Dry Film Lube-Coated Inside for Smooth Movement of the Buffer and Buffer Spring
Provided Carbine Recoil Spring and Std Buffer, Lock Ring, and the TSA Receiver Plate
Weight 274 gr
Width 29 mm
Height 37 mm
Length 182 mm