If you know how to take apart your gun, you can tell by removing the sear housing to see if there's a large hole in it. The updated version does not have the hole. You can also look at the sear. I think the old version is a bit rounded off and flatter at the top compared to the new version which is actually the same sear as the pro series now. The new barrel should have 2 dimples and not just associated with the pro series. The slide stop looks a bit different from the regular one too( i think its a bit more textured/angled) My 4/13 M&P9 has all the new features.
Now I just realized few days ago that the CA roster model might not have any updates because it might require it to be resubmitted for testing (not sure, just a guess)
|