First post, been lurking for awhile. I bought the M&P 15-22 as a good trainer to supplement my LWRC M6A2 (and save a LOT in ammo costs). I'm extremely happy with the 15-22 in all aspects but one...I wish it weighed more (actually, wish my AR weighed less but that isn't possible). I imagine I'm not the only one with similar thoughts and was wondering if anyone has come up w/ possible solutions. I've already replaced my stock w/ an LMT SOPMOD and loaded up the battery compartments to add a few ounces. Any other ideas? I know there are plenty of tactical add-ons that would add weight but not really the solution I'm looking for. Thanks.