The switch block is a nice design.
It allows two independently adjustable ports.
The only thing it doesn't do is extend the actual gas port location for suppressed use.
The switch block is a nice design.
It allows two independently adjustable ports.
The only thing it doesn't do is extend the actual gas port location for suppressed use.
Black River Tactical
BRT OPTIMUM Hammer Forged Chrome Lined Barrels - 11.5", 12.5", 14.5", 16"
BRT EZTUNE Preset Gas Tubes - PISTOL, CAR, MID, RIFLE
BRT Bolt Carrier Groups M4A1, M16 CHROME
BRT Covert Comps 5.56, 6X, 7.62
I've seen a pic of two SB on one barrel. The switch was drilled out on the rear one so the gas tube went through from the front one.
No idea if or how well it runs.
Great post!
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