For competitive airsoft shooters, Armorer Works just announced their AW Custom Triad Tightbore Inner Barrel & Performance Hopup Bucking... "Developed for and in collaboration with competitive shooters, we're proud to announce the new AW Custom Triad Tightbore 6.01mm Inner Barrels.

These barrels feature triangulated grooves cut into the bore of the muzzle end of the inner barrel.

The triangulated grooves are designed to create an air cushion around the BB when it exits the muzzle, eliminating contact (and therefore friction) between the barrel bore and the BB itself.

These grooves have been specifically engineered to provide exceptional straight-line trajectory stability by stabilizing the BB before it exits the inner barrel as well as increasing muzzle velocity.

The result of all this is longer effective range, and tighter, more consistent grouping for your shots."