Description
The Ruger BX-1 is the standard by which other 10/22 magazines are measured. Built with a black polymer body and heat-treated steel feed lips, this 10-round rotary magazine delivers the kind of performance that's made it a fixture in the rimfire world for decades. It's not the fanciest magazine out there, but it's arguably the most reliable.
How the Rotary Design Sets the BX-1 Apart
What makes this magazine different from traditional stacked-feed designs is the rotary system. Each cartridge sits in its own defined slot instead of being stacked on top of one another. This eliminates the rim overlap and binding that can plague other 10/22 magazines, especially when you're cycling different ammunition types. The rotary spring applies consistent, variable tension throughout the magazine's rotation, which keeps rounds feeding smoothly whether your gun is clean or has carbon buildup from extended range sessions.
Compatibility and Fit
The BX-1 works with any factory original 10/22 rifle, along with the SR-22 rifle, 22 Charger pistol, and the Ruger American Rimfire rifle in .22 LR. It'll also function in the 77/22 rifle, though Ruger recommends their JX-1 for that platform since the base profile doesn't match perfectly. This magazine fits flush with the rifle, which some shooters prefer for handling and concealment compared to extended magazines.
Real-World Performance
Owners frequently compare this magazine to higher-capacity alternatives and consistently note that the BX-1 works as well when dirty as when clean. It's lightweight at under a quarter pound and won't throw off the balance of your 10/22. Many shooters grab these for plinking, target work, or small-game hunting specifically because the feeding is predictable and the compact size keeps things manageable at the range. Having a few spares on hand cuts down reload time and gives you peace of mind that you've got a backup that actually works.
Key Specifications
- Manufacturer: Sturm, Ruger & Co.
- Model: BX-1
- Manufacturer Part Number: 90005
- UPC: 736676900053
- Caliber: .22 Long Rifle
- Capacity: 10 Rounds
- Magazine Type: Rotary
- Body Material: Black Polymer (DuPont Zytel)
- Feed Lips: Heat-Treated Steel
- Follower: Polymer with Red Indicator
- Compatible Rifles: Ruger 10/22, SR-22, 22 Charger, American Rimfire, Precision Rimfire
- Weight: Approximately 0.2 lbs
- Finish: Black
What’s Included
- One Ruger BX-1 10-round rotary magazine
Frequently Asked Questions
How does the BX-1's rotary design improve reliability?
Each cartridge sits in its own slot rather than stacking on top of each other, which prevents rim overlap and binding. The variable-tension rotary spring maintains consistent pressure throughout the feed cycle, so the magazine works just as well when dirty as when clean, and handles different ammunition types more forgivingly than traditional magazines.
Can I use the BX-1 in my Ruger 77/22 rifle?
The magazine will function in the 77/22, but the contoured base doesn't match the profile of that rifle perfectly. Ruger makes the JX-1 specifically for the 77/22 model, which is the better choice if you own that rifle. The BX-1 works great in the standard 10/22, SR-22, and other rimfire models.
Is the BX-1 really more reliable than larger capacity magazines?
The 10-round rotary design is proven to be more reliable than higher-capacity magazines, especially when cycling different ammo types. Many shooters report that BX-25 magazines require more maintenance and can have feeding issues with certain ammunition, while the BX-1 runs predictably across various brands and bullet shapes.
What's the red thing on the bottom of the magazine?
That's the red follower, which serves as a visual indicator that your magazine is empty. You can see at a glance where you are on rounds, and it also makes the magazine work great as a learning tool for people new to how rotary magazines function.





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