This Winchester manufactured third variation stripped hammer housing with hammer stop pin support holes is for the late model 1200 slide action shotgun with a 2 3/4" chamber and the metal trigger guard. This hammer housing does not include the hammer stop pin or the carrier spring / plunger support bracket and is in excellent condition with light wear. (file photo)

Features: Right side is stamped "60".

Note: Firearms with the following serial numbers have been observed in 12 gauge with a 2 3/4" chamber with this part: 1188757.