I'm running a early gen3 g22 with the factory recoil spring and guide. The spring wore out and the slide began to impact the frame and ding it up a bit. Taking some advise I purchased a ISMI 20lb spring and a Lone Wolf stainless guide rod. When I try to assemble the parts and when I tighten the hex nut the spring pops off. Seems the spring is too wide or the hex bolt head is not large enough. It will usually hold long enough to place it in the firearm. My concern is upon cleaning is this going to continue to happen?