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Instantly Tightens Loose Upper & Lower Receivers
Helps promote better accuracy by making the upper and lower receiver fit tighter.
Open upper receiver; drop this long-wearing, rubber wedge into the rear of the lower, behind the pushpin.
Absolutely no modifications are required.
Z-M Weapons AR-15/M16, ACCU-WEDGE
Tags: Rifle Parts, Accu-Wedges