FALshootist said:Like I previously stated, I have an M&P which is supposed to be a better product than the Sigma but its still not as reliable as my Glock even with a trip back to S&W.
Unfortunately, you probably have a "lemon" on your hands. Sigmas may be considered low-end, but in general they're very reliable pistols these days--typically far more reliable than your particular M&P. My M&P hasn't had a single malfunction to date, and I've put well over 2000 rounds through it by now. I've run it without lube, without cleaning for a long while, held it at every angle, and tried to limp-wrist it, but I haven't gotten it to fail yet. Most M&Ps are like this, but sadly a few are not. I've even seen some "lemon" Glocks that wouldn't shoot reliably no matter what fixes were tried (something major must be out of spec, I'd guess), although it's rare. Keep bugging S&W about it--your M&P should be at least as reliable as a Sigma, but from your description and my experiences with both models, it isn't.