Re: Number Your Magazines
I saw a guy this summer with a spanking new S&W M&P15 for a plinker and it would fail to feed any magazine except H&K's. Other mags were so light that recoil rocked them back enough to prevent the bolt carrier from hitting a new cartridge most times. Tightening the mag release didn't help. Putting in an M4 bolt still didn't work, so gas system wasn't the prob. Just needed a heavy duty mag....somebody recommended it after every other fault was eliminated. Problem isolated to just that rifle as far as I know...other M&P15's I saw so far shot fine. Anyways, the weight difference with those is quite a bit over other mags.
Never say die!
"A nation who forgets its defenders is soon forgotten itself."
"A good shot must necessarily be a good man since the essence of good marksmanship is self-control and self-control is the essential quality of a good man." – Theodore Roosevelt