Black GG CM16 SRXL upper This is from the pnuematic blowback model, it will work fine on a standard CM, GR16, CM16 SR Series, ARP9, etc... the only difference is the charging handle on these will normally connect to the mock bolt on the blowback gearbox. If you have a standard V2 you would need to drill a hole in the top of the upper and add a screw to connect the charging handle spring to. The other difference is the rail is metal, vs polymer on the standard Raider Metal RIS and outer barrel Complete with all parts, nothing missing. May ship disassembled.