Although this my first post, I've been lurking for awhile. I wanted to share my story about "brass ejections in the face." This may not apply to everyone with this issue, but I just want to pass on something to evaluate. I too had the same issues and thought this was a M&P issue. I used to be a very experienced pistol shooter and never had this issue. I took about 7 years off from shooting and just recently purchased a M&P9 and started shooting again. I was so pissed about getting brass in the face with my M&P, I went out and bought a Glock 19 gen4 figuring a new gun, problem solved. Not a chance, I experienced the same thing with the Glock. I now realized the odds are slim that both pistols have a manufacture defect. Now it was time to trouble shoot.
It wasn't till I starting shooting with my buddy and let him shoot both my pistols, that I figured out I was doing something wrong. He had perfect ejections to the 3-4 o'clock position with my pistols. I shoot right handed but left eye dominate, hmm maybe something about this is causing the issue. I then tried shooting left handed with M&P9. With my left hand, I had perfect ejections. I got out the iPhone camera, app called Film mic Pro, to shoot 120 frames per second. While reviewing the slow motion footage, I noticed my right hand torquing very slightly on every recoil which was probably causing the erratic ejection issues. Then my buddy notice the slight difference in the way I was gripping the gun with the right hand vs. left hand.
So here is what I found after about 800 rounds of wasted ammo (not really wasted): I'm right handed, much stronger with this hand. I was wrapping my hand slightly further around the grip. Instead of having a squeeze pressure on the grip at a perfect 12-6 o'clock position with strong hand, I found I was wrapping my grip slightly further around and apply pressure at the 11-5 o'clock position, causing a small torque with each recoil. This was causing the brass to fly in crazy direction, including my face. Once I changed my grip slightly, squeeze pressure with strong hand 12-6 o'clock, weak hand 9-3 o'clock, no more brass to the face with either pistol. It was such a simple fix, but not until I broke it down to the very basics.
It wasn't till I starting shooting with my buddy and let him shoot both my pistols, that I figured out I was doing something wrong. He had perfect ejections to the 3-4 o'clock position with my pistols. I shoot right handed but left eye dominate, hmm maybe something about this is causing the issue. I then tried shooting left handed with M&P9. With my left hand, I had perfect ejections. I got out the iPhone camera, app called Film mic Pro, to shoot 120 frames per second. While reviewing the slow motion footage, I noticed my right hand torquing very slightly on every recoil which was probably causing the erratic ejection issues. Then my buddy notice the slight difference in the way I was gripping the gun with the right hand vs. left hand.
So here is what I found after about 800 rounds of wasted ammo (not really wasted): I'm right handed, much stronger with this hand. I was wrapping my hand slightly further around the grip. Instead of having a squeeze pressure on the grip at a perfect 12-6 o'clock position with strong hand, I found I was wrapping my grip slightly further around and apply pressure at the 11-5 o'clock position, causing a small torque with each recoil. This was causing the brass to fly in crazy direction, including my face. Once I changed my grip slightly, squeeze pressure with strong hand 12-6 o'clock, weak hand 9-3 o'clock, no more brass to the face with either pistol. It was such a simple fix, but not until I broke it down to the very basics.