Product Review

TUNE-UP O-RINGS KIT for Crosman 1377 1322 Older Phase I and II Pump Air Guns that cock from the rear Oring kit to freshen up your rear cocker Phase I or II Crosman Pumper. If your gun cocks from the rear (has no right side bolt / handle), then this is your reseal kit. If it DOES have the right side bolt action then it needs my other reseal kit. Simple. O-ring that resides between the two halves of the valve. O-ring that resides around the outside "nose" of the valve. Transfer port gasket that seals between the valve and the transfer port seat. O-ring that goes onto rear of the breech of the rear cocker.