Franklin Armory 0050422BLK F1720rd 17 WSM Magazine for F17 SPR, Black Polymer

The Franklin Armory 20-round magazine for .17 WSM is built for shooters running the F17 SPR upper receiver on their AR-15 platform rifle. Where the factory F17 ships with a single 10-round mag, stepping up to this 20-round capacity magazine lets you spend more time on target and less time reloading when you're working through pest control, varmint hunting, or high-volume range sessions with rimfire ammunition. It's purpose-built to handle the specific feeding and reliability demands of the .17 WSM cartridge.

Franklin Armory engineered this magazine to work seamlessly with F17 rifles, accounting for the unique geometry and spring tension that rimfire rounds require. The black polymer construction keeps weight minimal while delivering the durability you need in the field—whether you're hunting coyotes at distance or culling ground squirrels on your property. Rimfire varmint hunters know that magazine reliability directly impacts success when you're taking multiple shots at small, fast-moving targets.

If you own an F17 SPR or are building out an AR-15 with a Franklin Armory F17 upper, a second or third magazine in this higher capacity makes a real difference in workflow. Load it, run it hard, and keep a spare in your pack for extended hunting trips or a long day at the rimfire range.

Key Features

• 20-round capacity—double the factory standard—reduces reloading during varmint and small-game hunting
• Purpose-designed for .17 WSM rimfire cartridge geometry and feeding requirements
• Durable black polymer construction withstands field use and weather
• Compatible with Franklin Armory F17 SPR and other F17 upper receivers

Specifications

Frequently Asked Questions

Will this magazine work with any AR-15?

No—this magazine is designed specifically for Franklin Armory F17 upper receivers and rifles. It's engineered for the .17 WSM rimfire cartridge and F17 platform, not standard centerfire AR magazines or other rimfire uppers.

What comes in the box?

You receive the 20-round magazine itself. Franklin Armory F17 rifles ship with one 10-round magazine; this product is a higher-capacity addition to expand your magazine rotation.

Is this magazine good for varmint and predator hunting?

Yes. The 20-round capacity is especially useful for high-volume varmint work where you're taking multiple shots at small game or pest animals. The extra rounds mean fewer mag changes during a hunting session.

How durable is the polymer construction?

The magazine is built from durable polymer with a black finish designed to handle field use. Rimfire magazines in general are less prone to wear than centerfire designs because of lower pressure, so a quality polymer mag like this one will hold up well with normal hunting and range use.