Arcturus AR MOD1 M4/M16 30/130rd Variable-Cap Windowed EMM Magazine Grey 416D Its full metal body is

Its full metal body is strong and maneuverable

Innovative automatic synchronization of the nozzle movement cycle enables easier calibration – no need to fire thousands of rounds to achieve good FPS results and stable BB trajectories

Compatible w/ Most HOP Rubbers

Continuous low-profile top rail

Strong Compatibility: Supports most V2-type gearboxes on the market

Arcturus AR MOD1 M4/M16 30/130rd Variable-Cap Windowed EMM Magazine Grey 416D Its full metal body isENHANCED CONSTRUCTION One Piece Reinforced Magazine Shell MODULAR INTERNAL Easy Disassembly for Cleaning & Maintenance MODULAR SHELL Quick Replacement for Optional Shells VARIOUS CAPACITY Switchable Mid Real Capacity Or High Capacity LENGTHENED FOLLOWER Snag Free & Reduce BB Waste IMPACT ABSORBING DESIGN For Outstanding Reliability REINFORCED MATERIAL For Long Lasting Durability SPECIFICATION Compatible: M4 M16 Construction: Polymer Capacity: 30 Round