the naked prophet
Member
On my wife's S&W M&Pc .40 it seems like the recoil spring may be a bit weak. If I pull back the slide, and slowly ease it forward, it'll "hitch" right before the barrel moves upward to lock up. The slide will sit right there, and the spring pressure isn't enough to push the slide forward into battery. In every other auto we have (including 1911, BHP, Glock, Beretta, Kel-Tec, etc) the spring alone is enough to push the slide into battery even when the slide is resting just before lockup. It seems that the M&P relies on the momentum of the slide to continue pushing the slide forward into battery.
Her M&P has experienced failures to fire due to being out of battery. She's also experienced premature slide lock due to the slide lock engaging during firing, usually toward the end of the magazine.
Could these issues be related? Maybe a stronger recoil spring would push the slide into battery more reliably, and reduce the slide velocity when it impacts the frame which is what I suspect is causing the slide stop to "bounce" up and engage?
I guess what I'm asking is do any of you with the .40 M&P compact have the same issue with not going into battery under spring pressure alone? I'd appreciate if you could check and get back to me. If your M&Ps will lock up just by spring pressure (as opposed to momentum), then I may have to call S&W and get a new recoil spring.
Her M&P has experienced failures to fire due to being out of battery. She's also experienced premature slide lock due to the slide lock engaging during firing, usually toward the end of the magazine.
Could these issues be related? Maybe a stronger recoil spring would push the slide into battery more reliably, and reduce the slide velocity when it impacts the frame which is what I suspect is causing the slide stop to "bounce" up and engage?
I guess what I'm asking is do any of you with the .40 M&P compact have the same issue with not going into battery under spring pressure alone? I'd appreciate if you could check and get back to me. If your M&Ps will lock up just by spring pressure (as opposed to momentum), then I may have to call S&W and get a new recoil spring.