wanted to put an AK style brake on AR .223/556, this item’s description only gave thread size and direction it adapts from and to, the bore size is for a 9mm, i wound up having to go to a silencer company to get the correctly bored .22 cal adapter, and their web sight said on every 9mm bored adapter they carried, “will not pass a .22 cal safely� decal on the package. i’ll save this for a
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