If you plan to actually take your MP7 Navy to a game

SMOOTH LIGHTWEIGHT ANODIZED ALUMINUM CONSTRUCTION

BARREL LENGTH: 11" INCHES

Gear Specs: 3 standard / steel

Length: 340mm

ProWin 140mm 31rd Aluminum Lightweight Magazine for Marui Hi-Capa 5.1/4.3 Airsoft Pistol Parts If you plan to actually*PS: Please note: installing parts assemble fitting airsoft gun will need intermediate knowledge; for expert or airsoft gunsmith. Please refer to your airsoft gunsmith for proper installation fitting. Fitting may be needed as the condition of each airsoft gun might be different. Regular maintenance is needed for all airsoft guns in order to keep it in good working condition and reduce wear out issue on parts.