Just got mine back from S&W for the second time for a similar problem- mine would lock back on a partially full magazine on a regular basis. Only difference was my slide actually locked back, not stick back. First time they replaced the slide lock which didn't help at all and the second time...
Interesting issue. For the second time I had to return my M&P 45 Shield for premature slide lock-back problems. I received the weapon back from S&W on 12/05/16, following replacement of the slide stop. I then took it to the range and continue to have premature slide lock-back issues as...
I shot close to 300 rounds on two trips to the range and had the slide lock-back on a partially loaded mag issue occur about every other mag using both the 6 and 7 round factory mags. I didn't ask the S&W rep how long it would take to get the weapon back but I have heard around three weeks...
45 Shield slide lockback on partially loaded mag
I experienced the same problem with my new 45 Shield using both range and HST 230 gr ammo. The S&W rep simply asked me to return the weapon to them for examination and repair. It's still at the factory so I don't know what they will do to...
.45 Shield Issues
Nice to hear S&W has great customer service, especially resolving the specific issues you had with your Shield 45. I had exactly the same problems you had: failures to feed and the slide locking open on a partially full magazine after firing more than 200 rounds of both...
I am 70 and have been carrying concealed for more years that I would like to remember. I have carried most makes and models from big to small in all major calibers. After all those years I finally settled on the M&P 9C, flat base 12 rd mag, Amerigo night sights with the Crimson Trace grip...