Siegetek Revolution High Torque Gear Set w/ Pinion Gear (20.8:1 / 26.67:1) Ratio:26.67:1 No FCU is needed to

No FCU is needed to power the system

PALS attachment webbing

Barrel Length: ~220mm

Does not include shells or optic

Siegetek Revolution High Torque Gear Set w/ Pinion Gear (20.8:1 / 26.67:1) Ratio:26.67:1 No FCU is needed to("O" Pinion Gear Included) 4 gears in total. Siegetek gears are the best gears on the market. Period. Barring extreme user error, they are pretty much indestructible. We've installed hundreds of sets without a single failure. All components are CNC machined out of chromium molybdenum steel rods, case hardened and then given a chemical coating for even more durability. All other gear sets on the market are either cast or sintered, then press fit or