BRT MarkBlue Gas Tube - BRT EXP

The Black River Tactical MarkBlue Gas Tube is a premium quality gas tube used exclusively with the BRT EXP length gas system.

The BRT EXP ( Extended Pistol ) gas system was created to provide OPTIMUM performance from 8" 5.56 barrels and is excellent for 7"-9" 5.56 barrels.

The BRT EXP gas system is approximately 1" longer than the Noveske Pistol length and 2" shorter than the standard Carbine length.

The distinctive "MarkBlue" dot allows easy identification of a genuine BRT gas tube and guaranteed performance.

It is compatible with BRT MicroPin Gas Blocks, front site bases and low profile gas blocks.