I have an BG380 with a EBB serial number. Was great for the first 500 rounds, now I get a failure to feed just about every magazine and the slide will not lock open when the mag is empty. No way it's gunked up as I thoroughly clean it after each range session. Been using Remington UMC's all along, never had a problem with them until now.

Decided to call S&W CS and let them take care of it.......I have full size M&P 9, a compact 9c, an MP-15, and an MP15-22 rifles and never had any problems. Very disappointed with this gun thus far.......