Guys, at the end of the day, accuracy or not, it's still a 22LR.. Building the best all aluminun upper/lower receiver may make the body more solid and so forth, but the bullet once it leaves the barrel, being so light would be toss around by the wind for any long distance type of shooting anyway...I guess for S&W it's engineers deemed this as a plinker and that is all they are gonna do to improve this fine rifle. The colt has a metal upper, and with it's thin pensil barrel it isn't anymore accurate than the M&P..

I wouldn't mind seeing an after market company make a alum. upper and lower to swap out if some folks want that weight and solid build. But I think the end results would be the same on paper.. But that's just my .02 cent... not trying to start a war... keepem in the X ring.