Browning T-Bolt Double Helix 10-Round Magazine - 17 HMR/22 WMR, Clear Polymer
- Capacity-Rounds:
- 10
- Type:
- Magazines
- Firearm Group:
- Rimfire
- Firearm Make Fit:
- Browning
- Caliber-Gauge:
- 22 Magnum
- Finish-Color:
- Black
- Model:
- T-Bolt
- Material:
- Polymer
- Model Fit:
- T-Bolt
The Browning T-Bolt Double Helix 10-round magazine is a purpose-built rotary magazine for .17 HMR and .22 WMR T-Bolt rifles. If you shoot rimfire competitively, hunt varmints, or just run a T-Bolt for plinking and small game, this magazine delivers the reliability and handling you need without the bulk or weight of older designs. The Double Helix uses a torsion drive spring and interlocking gear system to keep cartridges aligned and fed smoothly, shot after shot.
The clear polymer body lets you see exactly how many rounds remain in the magazine at a glance—no guessing, no unloading to count. Loading is straightforward, and if you need to unload, simply move the exposed gear back slightly to drop each round gently without tools or torn fingers. The magazine is shaped for smooth insertion into the receiver, with twin gripping grooves and a slightly extended baseplate that makes positive seating easy. Once locked in place, the spring-assisted drop-free design means fast, reliable magazine changes when you need them.
Built lighter and slimmer than competing rotary rimfire magazines, the Double Helix is easy to carry and even easier to use. Whether you're running a T-Bolt at the range or in the field, this is the magazine that keeps pace with your shooting.
Key Features
- Rotary design with torsion drive spring and interlocking gears for reliable feeding and cartridge alignment
- Clear polymer construction—see remaining rounds without unloading
- Gentle unload function: move the exposed gear to drop rounds without tools or finger damage
- Twin gripping grooves and extended baseplate for positive insertion and seating
- Spring-assisted drop-free ejection for rapid magazine changes
- Lightweight and compact compared to other rotary rimfire magazines
Specifications
| Caliber | .17 HMR, .22 WMR |
| Capacity | 10 Rounds |
| Type | Rotary Magazine |
| Material | Clear Polymer |
| Firearm | Browning T-Bolt |
Frequently Asked Questions
What Browning rifles is this magazine compatible with?
The Double Helix is designed for Browning T-Bolt rifles chambered in .17 HMR and .22 WMR.
Can I see how many rounds are left without opening the magazine?
Yes. The clear polymer body allows you to check your remaining cartridge count at a glance.
How do I unload the magazine?
Move the exposed gear back slightly, and cartridges will gently drop out one at a time. No tools or special equipment needed.
Will this magazine drop free from my T-Bolt?
The magazine features spring-assisted drop-free ejection, making rapid magazine changes simple and reliable.

