The marlin lever action bb rifle fills up with 650 rounds of.177 caliber steel bbs and with a single stroke of its iconic lever shoots bbs at 300 fps.Topping off this lever action bb gun are its sleek polymer wood grain finished checkered handguard, elegant wood-look stock and the big loop lever making the marlin easy to operate for just about any hand size.It's powered by spring-actioned compressed atmospheric air, uses no gunpowder, and should not be confused with any form of firearm.Action: Lever