Derya Arms Derya MK 12 Gauge 2 Rounds Rifle Magazine Black 2. Engineered with a durable polymer body and a sleek black finish this magazine is designed to offer reliable capacity and performance ensuring your shotgun is always ready for action. Specifications for Derya Arms MK 12 Gauge 2 Rounds Rifle Magazine: Manufacturer: Derya Arms Color: Black Fabric/Material: Steel Magazine Capacity: 2 Round Gun Model: Rock Island Armory TM22 Caliber: 12 Gauge Package Contents: Derya Arms MK 12 Gauge 2 Rounds Rifle Magazine What firearm models does the manufacturer say Derya Arms MK 12 Gauge 2 Rounds Rifle Magazine is compatible with? The manufacturer suggests that Derya Arms MK 12 Gauge 2 Rounds Rifle Magazine is compatible with Rock Island Armory TM22Derya Arms D050003: Derya MK 12 Gauge 2 Rounds Rifle Magazine Black