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With an adjustable length range of 22mm to 25mm
Color: Blue (anodized finish)
this complete conversion system allows the use of standard M4 AEG magazines and enhances gas efficiency
improved rigidity
The JeffTron Scylla V2 is a high-performance electronic trigger unit (ETU) designed to replace traditional mechanical contacts in your Version 2 AEG gearbox
RetroArms CNC Upper Split Gearbox V2 8mm QSC (2025) Cylinder Heads With an adjustable length rangeThe RetroArms CNC Upper Split Gearbox V2 8mm QSC (2025) is a high performance upper gearbox shell designed for Version 2 AEG split gearbox platforms. Crafted from aircraft grade 7075 T6 aluminum using precision CNC machining, this component offers exceptional strength, tight tolerances, and lightweight construction built to handle high stress, high RPS setups. This upper shell features 8mm bushing bearing compatibility and integrates QSC (Quick Spring