Brand: Element
The Element Shim set allows your gears to have proper contact with each other...
USD3.94
Brand: Element
Fits the SLR, JM Gen.9 M4A1, Maopul or split upper and lower receiver shells.Does not fit JM Gen.8 M4A1 or split left and right type receiver shells.Might require custom fitting and modding of bolt and shell...
USD6.56