Siegetek Revolution High Torque Gear Set w/ Pinion Gear (20.8:1 / 26.67:1) Ratio:26.67:1 It offers a low profile

It offers a low profile

The IMOD stock kit is the perfect start to any AR-15 build

It utilizes the open-top design with bungee cords to hold the mags in place securely until needed

This Proline Steyr AUG A3 MP (Multi Purpose) is a specialized version of the famed Austrian firearm with many refinements and enhancements compared to our Sportline guns

Siegetek Revolution High Torque Gear Set w/ Pinion Gear (20.8:1 / 26.67:1) Ratio:26.67:1 It offers a low profile("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