The BRT CustomTune Gas Port reduces gas system flow and corrects excessive gas drive from barrels with large gas ports or used with a dedicated suppressor.
The CustomTune Gas Port is installed inside the gas block or FSB between the barrel and gas tube.
After installation, it requires no user adjustments or maintenance.
The port cannot fall out, come loose or go out of adjustment.
It is available with a variety of port sizes to meet many applications.
This items consists of 1 gas port.
Installation generally requires the use of the HD install kit, which is available separately.
HD ports have larger bodies for greater compatibility with existing gas blocks and larger allowable port sizes.
Installation requires removal and re-installation of the low profile gas block or front sight base.
Installation is relatively easy and may take less than a half hour, start to finish.
Please allow 3-5 days for items to process.
Sizing Note: CustomTUNE Gas Port sizes are one step smaller than barrel ports for the same Gas Drive.
e.x. To get the equivalent of a .0625 barrel port, the .061 gas port should be selected.