Look ma - no more tools!
You no longer need the prongs or hex key whenever you want to adjust your spring tension. Loosen the side thumb screw allowing you to adjust the HST in or out with ease. Once you're done, tighten back the side screw.
Has a through hole in the back in case the spring tension is too much, you can use a hex key or thin screw driver to help turn
Black anodize to add character to your gun
Package includes side thumb screw and HST adjuster