Replica is made of metal and ABS. Pistol grip cover and some internal parts are made of ABS while body, barrel, magazine and grip are made of meta. This pistol has Blow Back system which is responsible for blockin the slide after the last BB. The important thing in this replica is safety, it will not allow to press the trigger while the magazine is not inserted into the gun. Full metal magazine is very heavy and durable while its capacity reaches 20 BB’s.