edison0918

For my case, the original kJ spring guide didn't work with guarder's steel outer barrel, so I had to buy guarder's recoil spring guide plus some polishing on the barrel to make it work smoothly

edison0918

Yes, although guarder's stuff said their aftermarket parts for KJ Glocks are CNC made, they don't fit perfectly... I had to polish the inner part of the slide and the outer barrel to make the gun runs smoothly...