CYMA CGS 8.5" Easy Shooter Series SBR M4 GBBR Stocks and Buffer Tubes One button easy switch from

One button easy switch from mid-cap to real magazine capacity

If your AEG becomes jammed

0 modification removes the stock hopup arm mechanism and replaces it with a thumbscrew that pushes down from the top

fully ambidextrous bolt release tabs

Gain a tactical advantage thanks to the extremely fast trigger response

CYMA CGS 8.5" Easy Shooter Series SBR M4 GBBR Stocks and Buffer Tubes One button easy switch fromManufacturer: CYMA CGS SKU: CYMA CGS 004 85 (CGS. 004 8. 5) Main Features: CGS (CYMA Gas System) provides reliable performance and durability Compatible with standard Tokyo Marui MWS M4 spec parts (modifications may be necessary) Specification: Main Material : Aluminum, Zinc Alloy, Nylon Fiber Magazine Capacity : 30 Rounds 6mm BB System : Gas Blowback, Adjustable Hop Up, Marui MWS compatible Power Source : Green Top gas Fire Mode : Semi Auto Full Auto