Winchester is recalling SXP shotgun due to firing pin problem. To check if your shotgun is one of those recalled, you need to call Winchester Guns at 1-800-945-5372 or email at SXP@winchesterguns.com
Models affected by the recall are 12ga Waterfowl hunter, Black Shadow, Turkey Hunter, and Long Beard with 3 1/2 chamber
Link: http://www.winchesterguns.com/support/files/images/wfa/2015-All/2015-Recall-Info/SXP_Recall-Notice_2.pdf
Stephen Floyd posted video of what can happen with this gun.
https://www.youtube.com/watch?v=rBX7mEBVOao
