SJC 11 port 40 cal Aluminum comp,
9/16" 32 t.p.i. for KKM/SJC barrels or
9/16"-24 for Lone Wolf style barrel threads.
This is the comp you need to run 40 cal open in USPSA Greatly improves recoil control when shooting major power factor loads. Will also run many minor power factor loads.
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I have a40 glock with tactial lenth slide &kkm barrel & comp,recieved sjc 11 port attached it to kkm with Teflon tape so it wont turn. I shot 3" square at 50 ' 2.45 " group 2 shots at.0020 split.& never lost the dot!! went home & lock tited it on!! thanks bill hunter