HK MP5SD6 / MP5SD5 AEG - Elite Version - Kit Pistons and Piston Heads The Airtech Studios G&G ARP9

The Airtech Studios G&G ARP9 / ARP556 BEU Battery Extension Unit is designed to fit on G&G ARP series of AEG guns:  fits on the ARP9 and ARP556

There are rare versions of the AM-013 cap which comes as a ‘one-piece’ part - if this is the case

Pre-installed FLUX accessory rails - M-LOK compatible

and durability Performed accurately and consistently on Tokyo Marui (include G&G

HK MP5SD6 / MP5SD5 AEG - Elite Version - Kit Pistons and Piston Heads The Airtech Studios G&G ARP9HK MP5SD6 MP5SD5 AEG Elite Version Airsoft Rifle. This is a full metal heavy high quality airsoft gun. The all new MP5 elite is not the VFC type, but a high quality version from Cyma that is very solid. Kit comes with optics rail on top plus the A5 retractable rear stock (SD6 style) and the A4 style full stock (SD5 style). Includes a hicap magazine. Other features of this gun include full metal parts (it's very heavy and robust!), upgraded fire