I just installed an "ACE M4-SOCOM" preban collapsable. Likes/Dislikes: very solid, the "play" I had w/ my COLT 4 position is gone. But now I seem to notice the play between the upper and lower receiver a lot more ( accuwedge next). I may swap the 1" pad out w/ a 1/2" pad, since it really isn't needed. The fully extended position isn't quite as far as the 4pos Colt, but for me it is further than I need (my preference setting is 2 clicks out of the available 4). It is a little heavier than the Colt stock. I think this will grow more on me, I still like my old Colt collapsable though. Just waiting for my "Tango-Down" grip, hopefully any day now.
wow!!! cool stuff! i didn't even think thoes were out yet.