223 AR15 Pin Upper Receiver Vise Block

CNC cut NO-M.A.R® polymer protects receivers finish. Install and remove barrels that fit 223 AR15 Flat Top receivers. Works with Bolt Group & Handle installed or removed. Works in any bench vise that opens 3.5 Inches wide. Use Horizontally to remove or install barrels. Use Vertically for cleaning & hand guard removal. Full width block & 6" Rail Cap for big or small vises. Includes two 1/4" diameter steel pins and retaining clips. Need to remove a stubborn barrel? Try our ATP blocks instead!