Siegetek Revolution High Torque Gear Set w/ Pinion Gear (20.8:1 / 26.67:1) Ratio:26.67:1 1x G&G Knights Armament SR30

1x G&G Knights Armament SR30 CQB M-Lok Rail Full Metal Black

*c-clip NOT included

Upgrade barrel for stability and realism

Side Plate with Spring Tension for Quick Easy Installation

Siegetek Revolution High Torque Gear Set w/ Pinion Gear (20.8:1 / 26.67:1) Ratio:26.67:1 1x G&G Knights Armament SR30("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