Ingenious and highly reliable. 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 22 LR T-Bolt. 

Having a few extras makes shooting more fun. 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.

Easy to load. 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.

  • Magazine type - Rotary, Torsion spring driven, Inter-locking gear cartridge timing
  • Body - Polymer, semi-transparent with steel rear panel  
Item Selector
Item Description MSRP More Options
Item Number 112055291 UPC 023614048091
Material Plastic Color Black
Caliber 17 HMR:22 WMR Capacity 10
Magazine Feed Style Rotary Length 0"
Weight 6.4 oz MSRP $64.99

Additional Product Information