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Page AR-15 » AR Piston Systems
AR Sponsor: bravocompany
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Posted: 10/6/2018 3:56:04 PM EDT
Can anybody tell me what the proper gas port size is for the wolf A1 upper? I bought a correct T91 gas block for the wolf A1 barrel profile and had a local gunsmith install it. It won't lock the bolt back on an empty mag and he is telling me the gas port is undersized. I was told that my barrel has a .055 port. I know one member had opened his up to .093 but his is a SBR.
Page AR-15 » AR Piston Systems
AR Sponsor: bravocompany
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