Black River Tactical
Precision-ported midlength gas tube for 14.5"–16" barrels. Drop-in gas restriction without touching the gas block.
The Black River Tactical EZTune Gas Tube in midlength configuration provides precision gas restriction for the most popular AR-15 barrel lengths, targeting 14.5 to 16 inch barrels with midlength gas systems. This variant delivers the same revolutionary precision-orifice design as the carbine-length EZTune, placing gas flow restriction directly in the tube rather than at the gas block. The midlength version proves particularly valuable for pin-and-weld builds at 14.5 inches, where permanent muzzle devices make traditional adjustable gas blocks impractical to tune.
Midlength gas systems offer inherently smoother operation than carbine-length systems due to longer dwell time and lower peak pressures. However, many factory barrels still feature oversized gas ports that cause excessive cycling when suppressed. The EZTune midlength tube corrects this overgassing without requiring gas block removal or handguard disassembly, making it ideal for rifles with pinned low-profile gas blocks or manufacturers who stake gas tubes in place. Installation requires only a gas tube roll pin punch and completes in under 10 minutes.
Like all EZTune variants, the midlength tube functions as a consumable component with 5,000-10,000 round service life depending on port size selection and shooting intensity. Black River Tactical provides comprehensive sizing guidance based on barrel gas port diameter and intended suppressor use, ensuring shooters select the optimal restriction level. For dedicated 14.5-16 inch suppressor hosts with permanently attached muzzle devices, the midlength EZTune represents the simplest and most reliable gas tuning solution available.
Add the BRT EZTune Gas Tube - Midlength to your build and see how it enhances your platform.