Description
This is a factory OEM magazine engineered for the Ruger SR-556 and AR-556 platforms, though it also works with most standard AR-15 rifles that accept STANAG-pattern magazines. The construction and materials match what comes on the rifles themselves, so you know the fit and function will be seamless right out of the box.
Two-Part Stainless Steel Ruger Magazine Design
Manufactured in the USA by C Products Defense, this magazine uses a two-part stainless steel body that's robotically welded to maintain tight tolerances and ensure a proper fit in your magazine well. The stainless steel is coated in black Teflon for corrosion resistance and durability, making it a solid choice whether you're shooting at the range or in the field. The stainless steel spring inside is heat-treated for consistent performance over years of use.
Feeding Reliability
The orange anti-tilt follower keeps rounds seated properly as you cycle through the magazine, and an integrated over-travel stop prevents rounds from jamming in the feed lips. These features were designed specifically to increase feeding reliability and reduce the chance of misfeeds or double-feeds. The result is a magazine you can trust to perform when it matters.
STANAG Pattern Compatibility
While built for Ruger's rifles, this magazine follows standard STANAG dimensions, so it'll work in other AR-style rifles that accept standard magazines. The 30-round capacity gives you extended shooting sessions without frequent reloads. C Products Defense backs their magazines with a 100% replacement guarantee, which speaks to the quality and confidence behind the product.
Key Specifications
- Manufacturer: Sturm, Ruger & Co. (C Products Defense)
- Manufacturer Part Number (MPN): 90420
- UPC: 736676904204
- Caliber: .223 Remington / 5.56 NATO
- Capacity: 30 rounds
- Material: Stainless Steel (two-part body)
- Finish: Black Teflon coating
- Spring: Heat-treated stainless steel
- Follower: Orange anti-tilt
- Features: Integrated over-travel stop, robotically welded construction
- Rifle Fit: Ruger SR-556, AR-556, AR-15 pattern
- Origin: Made in the USA
- Length: 13 inches
- Style: Detachable
What’s Included
- One 30-round stainless steel magazine
Frequently Asked Questions
Will this Ruger magazine work with other AR-15 rifles besides my SR-556 or AR-556?
Yes, this magazine follows standard STANAG specifications, so it's compatible with most AR-style rifles that accept standard M16/AR-15 pattern magazines. That said, fit and function can vary slightly between different manufacturers and models, so it's always worth testing with your specific rifle if you haven't used Ruger magazines before.
What's the advantage of the stainless steel construction with Teflon coating?
Stainless steel resists rust and corrosion naturally, and the black Teflon coating adds an extra layer of protection against elements and rough handling. This combination means the magazine will hold up well whether you're shooting in wet conditions, storing it long-term, or running it hard at the range.
Why does this magazine have an orange anti-tilt follower?
The anti-tilt follower keeps rounds standing upright and properly aligned as they move up toward the feed lips. This reduces the chance of rounds tipping sideways and causing misfeeds. The orange color also makes it easy to see the follower position at a glance when you're loading or unloading the magazine.
Is it safe to keep this magazine fully loaded long-term?
Yes. While there's some debate in the shooting community, most manufacturers including those behind this magazine state that leaving magazines fully loaded won't weaken the springs. Many shooters rotate between multiple loaded magazines to spread out any potential wear, which is a good practice if you keep several mags on hand.





Reviews
There are no reviews yet.