NEMO Arms exclusive OMEN magazine. This rugged polymer magazine was engineered from the ground up based on belted magnums. The magazine features an anti-tilt follower, 10 or 14-round capacity, stainless steel spring. Magazine disassembles easily for cleaning. Weighs 7 ounces unloaded. Cartridges that can be used: .300 Winchester Magnum, 7mm Remington Magnum and .338 Winchester Magnum. Magazine can accommodate a cartridge up to 3.50″ overall cartridge length.