100% Proudly Made inUSA for Most Serious Users6-position Receiver Extension Tube with Mil-spec Diameter for .308 AR 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
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