Mil-spec 6-position Receiver Extension Tube #M5921

Mil-spec 6-position
Receiver Extension Tube


6-position Receiver Extension Tube with

Mil-spec Diameter for AR15 Rifles Precision Machined

from 6061/T6 Aircraft Grade Aluminum Matte Black

Anodizing with Mil-spec, Type III Hardcoat, Class II Tightest

Tolerance Control for Zero-gap Fit with Polymer Stock and

Receiver to Meet Most Demanding Silent Operations 100%

Proudly Made in USA for Most Serious Users