Browning T-Bolt Double Helix 22 WMR / 17 HMR Magazine

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A groundbreaking design that assures excellent feeding. Specifically for T-Bolt 22 Magnum and 17 HMR rifles. Holds ten cartridges. IMPORTANT: Does not fit T-Bolt 22 Long Rifles.

Slimmer, lighter and easier to handle than the competition’s rotary rimfire magazine, the ten-round Double Helix uses a torsion drive spring and interlocking gear design to maintain correct timing and exact cartridge alignment for smooth, reliable feeding. The translucent gray body allows for easy verification of the number of remaining cartridges. Ammunition can be removed by moving the exposed gear back slightly to gently drop each cartridge without tools or scraped fingers. Made specifically for 22 Magnum and 17 HMR versions of the T-Bolt rifle. Does not fit the T-Bolt 22 LR.

The smooth, rounded exterior contours of the Double Helix, along with twin gripping grooves, tapered shape and a slightly extended baseplate design make insertion positive, while the spring-assisted drop-free magazine ejection feature allows for rapid magazine changes.

The Browning Double Helix rotary magazine system is easy to load, easy to carry and easy to use. Most of all, it’s easy to see the Double Helix magazine design is the shape of things to come.

  • 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


SKU 3180
MPN 112055291
Material Plastic
Color Black
Caliber 17 HMR:22 WMR
Capacity 10
Magazine Feed Style Rotary
Length 0"
Weight 6.4 oz


Extra Information

22 WMR
17 HMR
Fits (Brand):