Sons of Liberty Gun Works Liberty .750 Set Screw Gas Block

A gas block is a part nobody thinks about until it moves. This one is heat treated steel with knurled set screws, sized for a .750 gas journal, and it sits square on the journal shoulder so it indexes the same way every time it goes on a barrel. The body is cut low profile to clear a free float handguard.

It comes ready to be pinned, which is the right answer on a rifle that gets used hard. Set screws hold fine on a range gun, but a taper pin through the block takes the question off the table entirely. Sons of Liberty builds its small parts to mil-spec dimensions, so this drops onto a standard AR-15 barrel without fitting.