In this episode of Evike.com's "The Gun Corner", Matt talks about the APS ASR-118 Boar Tactical AEG that uses the Silver Edge Gearbox... "The all new APS Silver Edge Gearbox utilizes a unique polishing technique to remove burrs and surface imperfections from the gearbox shell. This polishing leads to an incredibly smooth and even finish that will reduce friction and lower the gearbox load.