Browning T-Bolt Double Helix.22 LR Rotary Rifle Magazine 10 Round Black 1 Pack Polymer 10RD. T-Bolt rifles were the first bolt action rifles that took the old school single-shot action and combined it with double-mag bolt action technology - basically two things that eliminated magazine feeding failures. T-Bolt rifles were created by combining the best of both worlds - speed and precision - and the only result was a devastatingly accurate rifle that most shooters would describe as a Browning. That's exactly the opposite of today's market where most rifle magazines fail within minutes of firing. Browning's magazine feeding technology is one of the most innovative on the market - soon every bolt-action rifle will be fitted with a 10-round magazine like the originals. The technology that helped Browning create the T-Bolt rifles is also found in other Browning rifles - it's one of the most copied features of these Browning magazines - and some call it "mag-bottlenecking" - a design that has since become a feature in this market. Specifications for Browning T-Bolt Double Helix .22 LR 10 Round Rotary Rifle Magazine: Manufacturer: Browning Color: Black Fabric/Material: Metal Magazine Capacity: 10 Round Gun Make: Browning Gun Model: Browning T-Bolt Gun Type: Rifle Quantity: 1 Features of Browning T-Bolt Double Helix .22 LR 10 Round Rotary Rifle Magazine Metal and polymer body The patented Double Helix rotary box magazine uses torsion spring-driven interlocking gears for added reliability Easy loading and unloading Cartridges shown not included Package Contents: Browning T-Bolt Double Helix .22 LR 10 Round Rotary Rifle Magazine What firearm models does the manufacturer say Browning T-Bolt Double Helix .22 LR 10 Round Rotary Rifle Magazine is compatible with? The manufacturer says that Browning T-Bolt Double Helix .22 LR 10 Round Rotary Rifle Magazine is compatible with Browning T-BoltBrowning 112055290-10RD: T-Bolt Double Helix.22 LR Rotary Rifle Magazine 10 Round Black 2 Pack 1 Pack Polymer