I bought some accu wedges for my rifle and then I was going to give some out to my buddies with rifles. We all actually have S&W M&P's. I knew there would probably be some trimming and fitting, but the dang thing wouldn't fit. I didn't read anything about them not fitting in M&P's but after some post face palming
i found a thread where someone mentions they don't work with M&P's because of a higher shelf in the lower. The thread is
HERE. They also talk about some alternative solutions.
Tensioning take down pins, Accu Wedge, Foam earplug, and a simple O-Ring.
I went into the garage and guess what... the O-Ring works just fine.
The slop in the recievers was equal at the front and rear pin. So having the O-Ring at the front pushes the receivers apart a little more then needed, but this does the same action of accu wedge. If you have more slop at the rear then the ear plug might work at the rear instead of the other options. Only issues with the accu wedge or ear plug is they may shift/fall out when removing BCG or cleaning. The O-Ring is in the front so it is less likely to be taken apart, and it is also somewhat retained on the front post.
*all photos take from
this thread *
I did search but the search feature on this site is retarded, and what's with the limited 30-day timeline?