its a synthetic seal, but the old synthetics these had can degradeFebruary 8 2018 at 4:09 PM
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Response to The one I am looking at has the full
I have a 353 and its seal was crumbling, so I got a new seal , spring and breech seal from RWS back in the day. Mine is .177, but last spring I picked up a .22 barrel with linkage for it.