Shooting Padre
US Veteran
I made a lower vice block for my M&P 22-15 and it seems to work ok. I haven't used it for much more than holding the rifle in the vise while I do light work on it. Is there any reason I couldn't do the same for the big brother, instead of paying fifty bucks for a plastic version? All advice welcome. On the 15-22 I did cut in a place for the mag catch to engage in.