Fadetoblack188 Posted January 26, 2020 Share Posted January 26, 2020 What size is the threads on the top of the sbe 2 receiver? The 4 holes that mount a rail to it? One of the plastic caps fell out and want to thread a set screw in Quote Link to comment Share on other sites More sharing options...
Steve Rose Posted January 26, 2020 Share Posted January 26, 2020 Factory size is 8-40 Quote Link to comment Share on other sites More sharing options...
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