Originally Posted by Agent Tikki
Just Got a new G20LS, I currently have a Gen 3, but was wondering, will it work on a Gen 4 Frame?
I have read that GEN 3 slides work on GEN 4 frames, but there will a pretty good gap between the dustcover and frame. The gap is there because the GEN 4 recoil assembly is larger in diameter, and Glock added more clearance to the frame.
Hopefully my GEN 4 G21 will be in my hands soon, so I'll be able to snap a few pics for you.