Exhaust Valve Ring for The very early Crosman 130, 137,140,147, etc. This part does not use the CRS130-029. Uses Breech seal CRS130-036 (order separately) alone. The Exhaust Valve Ring can be replaced on these models with CRS140A056 but you have to use a CRS130-029 or CRS1930-016 (order required one separately).