18 shot magazine, bb fires 4.5 mm ( .177) plastic or metal BB's. Can also fire air gun pellets, or darts, singly. Spring powered, single shot from 18 shot magazine. Length 263mm, weight 700g, Metal construction. Silver chrome finish, black grips. Similar to G2005 without the red dot sight. Ammo is not included - use 4.5mm metal BB's for best range and power, plastic BB's for indoor use. Remember that these 4.5mm models have up to 2 foot lb. power and are more powerful than most BBguns. Extra care in use.