ACE1Arms SAI slide kit for WE M&P

[Gaz259]

I recently purchased an ACE1Arms slide kit from them. Everything went fine until I tried to rack the gun, I noticed before hand that the outer barrel moved slightly, as in it was loose but when I rack it or fire it the inner barrel block part doesn't quite return back to where it should do, there is also a bit of a gap. when I put the original M&P slide on with the SAI outer barrel it works fine. Anyone have any ideas ?

[johnnyj]

Re: ACE1Arms SAI slide kit for WE M&P

Common issue on the new M&P slides from ace one they changed the slide as it was killing outer barrels when used with there silencer kits , tiny O ring around the inner barrel at the hop end and build up the area the outer barrel makes contact with the lower frame I have done this before using black nasty glued in place ( it helps push up the outer barrel around .5-.6mm and it locks in place.