So this gun is not mine. But I did happen to get a picture with it. It is a gas blowback Barret. It shoots 8mm .43 gram bb's (that's what I was told at least.) It weighed what felt like 30 pounds. The full barrel retracts/ kicks back into the gun about 6 inches when fired. Suposedly there was only like 100 of them made. Hope you guys enjoy.