Alpha Parts BCM Style Aluminium Receiver Set for Systema PTW M4 Rifle Length-(mm)_740.0 A low profile design gives

A low profile design gives the user more mounting options without interfering with other equipment and its rounded and beveled edges provides a snag-free surface

Suitable For Tokyo Marui MP5-K Series Airsoft Rifle

28 Rounds Loading Capacity Gas Magazine (6mm Plastic Bullet Only)

Excellent Craftsmanship Insert 40mm Cartridge inside and fun to shoot

Alpha Parts BCM Style Aluminium Receiver Set for Systema PTW M4 Rifle Length-(mm)_740.0 A low profile design givesAlpha Parts BCM Style Aluminium Receiver Set for Systema PTW M4 Rifle Aluminum Construction Engraved Realistic Marking Suitable For Systema PTW M4 Series Airsoft Rifle