STAINLESS STEEL GUIDE ROD ASSEMBLY WITH ADAPTER RING FOR GLOCK GEN4 G20, 21
This kit allows you to use the Gen 1,2, & 3 recoil spring assembly on your Gen 4 Glock. The insert is made from steel and is black anodized to match your Glock. One major advantage to the Gen. 1, 2, 3 recoil spring assembly in your Glock Gen 4, is that you are now able to change springs out on your Gen 4 with just using the hex screw on the end. This assembly comes with the gen4 adapter, stainless steel guide rod and the stock glock recoil spring installed. This kit is for the gen4 models 20 and 21.