UTG PRO Commercial Spec 4-position Receiver Extension Tube
4-position Receiver Extension Tube with Commercial-spec Diameter for AR15 Rifles
Precision Machined from 6061/T6 Aircraft Grade Aluminum
Matte Black Anodizing with Type III Class II Hard Coat for Best Wear Resistance
Tightest Tolerance Control for Zero-gap Fit with Polymer Stock and Receiver to Meet Most Demanding Silent Operations
922R Compliant: No person shall assemble a semiautomatic rifle or any shotgun using more than 10 of the imported parts if the assembled firearm is prohibited from importation under US Code 18 section 925(d)(3).
Length : 7.205"
Weight: 4.1 oz