• Fully polished "Silver Edge" gearbox increases overall efficiency by up to 15% from standard gearbox designs
• Made from high strength Grade 5 aluminum alloy; reinforced in key areas for longevity
• 8mm stainless steel bearings provide smooth travel for the steel gear set
• Ported cylinder optimized for carbine length inner barrels (~363mm)
• Integrated "quick spring release" function for easy spring change
• Advanced S.D.U. chipset to manage shot-to-shot amperage draw (gearbox only pulls 11amps at ~380 FPS) for improved consistency, performance, and instantaneous trigger response making this one of the most efficient stock gearboxes on the market
• Wired to the front with a Deans style T-plug
• Ambidextrous cams and gears included

When APS set out to develop the Silver Edge gearbox, they wanted to bring to market an ultra-smooth, low amperage draw, ultra-reliable system with huge upgrade potential. The newest iteration of the Silver Edge gearbox named eSilver Edge takes everything that made the original great and improves upon it.

The newly developed advanced S.D.U™ (Super Dynamic Unit) chipset monitors the amperage draw from shot to shot and will cut power to the gearbox if the current spikes too high before damage can be done to your gun.To improve trigger performance, the eSilver Edge gearbox features a micro switch trigger which works together with the S.D.U.™ chipset for near instantaneous trigger response (as fast as 0.02 seconds). When combined with a short stroked trigger, users can achieve an incredible semi-auto rate of fire