Last page update 8-28-18
Version 3 gearbox
Anti-reversal Latch: V2/3
Class 1: King arms
Class 2: SHS, ICS, Guarder
Class 3: Lonex, Modify, ASG, VFC
Class 4: Laylax
Cylinder Head: V3
Class 1: A&K,
Class 2: ICS,
Class 3: Laylax, SHS, ZCI
Class 4: ASG, Lonex, MAXX model,
Gears: V2/3 15 tooth sector gear drive
Class 1: A&K, G&G
Class 2: SHS, ZCI, Lonex, Modify
Class 3: Laylax, G&P
Class 4: Siegetek
Gear box: V3
Class 1:
Class 2:
Class 3: Lonex
Class 4: Retro Arms, SHS
Nozzle: Varying lengths
Class 1:
Class 2: Guarder, Retro Arms
Class 3: Lonex, Shs, Laylax
Class 4:
Piston: Standard 15 tooth
Class 1:
Class 2: SHS, Modify
Class 3: Lonex
Class 4: Laylax, systema
Piston head: AeG Standard
Class 1:
Class 2: Shs, Bravo
Class 3: Lonex
Class 4: Action Army, Maxx Model, Laylax
Spring: AEG standard
Class 1: G&G
Class 2: SHS, Action Army
Class 3: Laylax, ASG
Class 4:
Spring guide: V3
Class 1:
Class 2: SHS, Madbull, Maxx Model
Class 3: Lonex
Class 4: Laylax
Trigger contacts: V3
Class 1:
Class 2: SHS
Class 3:
Class 4: Lonex
Guns that use V2 gearboxes: MP5k, AK47, CZ 805 Bren, G36, Sig 552
Item name: Compatibility
Class 1: Manufacturers of replacement parts
Class 2: Manufacturers of good parts
Class 3: Manufacturers of great parts
Class 4: Manufacturers of the best parts
Version 3 gearboxes are best know for AK47s. They are widely considered the best gearboxes considering the ease to work on (attached motor cage) and significantly higher reinforcement versus the version 2 gearbox. Even a stock v3 gearbox can potentially last longer in high impact builds than a v2 would in a normal build. Other than potentially aftermarket SHS and Retro Arms M249 gearboxes, V3 gearboxes are the strongest gearboxes. They are also popular due to the high amount of available upgrade parts. Nearly all internal parts for a V3 gearbox are compatible with V2 parts.