by Z-M Performance Systems
The ACCU - Wedge™ adds stability and eliminates any chance of unwanted noise from this particular weak point in an otherwise fine weapon. This is perhaps the least expensive of all the AR-15's many potential accessories, yet it adds immeasurably to the security and surety of the most basic element of any weapon... its assembly!
This well-designed component fits between the receiver and the trigger assembly housing and completely eliminates the play and "rattle" which is all too often associated with this otherwise modern rifle.