The M4 RIS Carbine is value that will be tough to beat. This M4 features full metal externals such as the receiver, rails, buffer tube, and barrel. Other features include a hi-cap magazine, retractable stock, and PEQ battery box. The gearbox is a standard TM spec version 2 with reinforced metal internals that are compatible with aftermarket TM spec parts. The CYMA M4 is a great rifle for anyone looking to for a skirmish grade metal AEG or those looking for a good full metal base gun to use for upgrading. With its standard Picatinny rails and ver.2 gearbox, the upgrade and accessory options for this AEG are endless.
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