NEMO Arms Omen .300 Winchester 10 Rounds Rifle Magazine Black 10. This rugged polymer magazine was engineered from the ground up based on belted magnums. The mag features an anti-tilt follower 10 round capacity stainless steel spring. Magazine disassembles easily for cleaning Specifications for NEMO Arms Omen .300 Winchester 10 Rounds Rifle Magazine: Manufacturer: NEMO Arms Color: Black Finish: Polymer Magazine Body Material: Polymer Fabric/Material: Polymer Magazine Capacity: 10 Round Caliber: .300 Winchester Magnum Gun Make: Nemo Gun Model: Nemo Omen Gun Type: Rifle Quantity: 1 Package Contents: NEMO Arms Omen .300 Winchester 10 Rounds Rifle Magazine What firearm models does the manufacturer say NEMO Arms Omen .300 Winchester 10 Rounds Rifle Magazine is compatible with? The manufacturer says that NEMO Arms Omen .300 Winchester 10 Rounds Rifle Magazine is compatible with Nemo OmenNEMO Arms OMN-LC110-2: Omen .300 Winchester 10 Rounds Rifle Magazine Black 10