The Marlin 556-XT15 is a US-made, factory-pattern 15-round .22 LR magazine for the Marlin 80/780/20/25 bolt-action family, finished in black oxide. It's an extended-capacity version of ARM's 7-round 71903 magazine, built with a slight feed ramp so rounds travel smoothly from the magazine into the chamber.
Fits these rifles
This magazine fits the following Marlin .22 LR bolt-action models, plus rebadged rifles Marlin built for other retailers:
- Marlin 20, 25, 80, 780, 80C, 80DL, 80E
- Rebadges: Glenfield 20, 25, and 80G, JC Higgins 42 and 42DL, Foremost 20, Revelation 105
Not sure which one you have? Confirm the model number stamped on the left side of the barrel before you order, or use the Marlin Magazine Fitment Guide.
This is a .22 LR magazine. It will not fit a Marlin rifle chambered in .22 WMR or .17 HMR, and a .22 WMR/.17 HMR magazine will not fit here. The two magazine families are not interchangeable.
Every part of this magazine — body, follower, spring, and floor plate — is made to the original Marlin dimensions, so it drops into the magazine well and feeds the way the factory magazine did. Black oxide is a thin conversion coating fused to the steel rather than a paint or plating layer, so it won't chip or flake with normal use, and it matches a blued barrel. Feed geometry and spring tension are what decide whether a round chambers cleanly, which is why we build to the original pattern instead of a generic universal design.
Specifications
| Spec | Detail |
|---|---|
| Caliber | 22 LR |
| Capacity | 15 Rounds |
| Finish | Black Oxide |
| Material | Steel |
| Manufacturer Part # | 71904 |
| Made in USA | Yes |
Why buy from American Rifle Magazines
- US-made — manufactured in the USA from US steel and US components, not an imported copy.
- Manufacturer-direct — you're ordering the factory-pattern magazine straight from the maker, not a reseller.
- In stock and ready to ship — from our shop in Connecticut, no backorder wait.
Shipping restriction: because of state magazine capacity laws, this 15-round magazine cannot be shipped to California, Connecticut, Hawaii, Illinois, Maryland, Massachusetts, New Jersey, New York, Oregon, Rhode Island, Vermont, Washington, or Washington DC. If you're in one of those states, ARM's 10-round 556-XT10 is built for the same rifles and stays within a 10-round limit.
Choosing the right one
If you don't live in a restricted state, this 15-round magazine more than doubles the standard 7-round capacity for the same rifle. If you do, or if you'd rather stay at the standard capacity, ARM also makes the same magazine in 10-round and 7-round black oxide.
Magazine capacity limits vary by state beyond the shipping restriction above. Before you order, check your state's magazine capacity laws.
Fit note: on some Model 80 rifles, the magazine's rivet sits slightly proud and can keep the magazine from fully engaging. If that happens, grinding down the rivet or trimming the bottom magazine plate lets the rivet clear and the magazine seat fully. If your current 7-round magazine already sits loose with noticeable front-to-back play in the rifle, hold off and check with ARM before ordering.
Frequently asked questions
How many rounds does this magazine hold?
This magazine holds 15 rounds of .22 LR.
Which rifles does this magazine fit?
It fits the Marlin 20, 25, 80, and 780 bolt-actions (including the 80C, 80DL, and 80E), plus the rebadged Glenfield 20/25/80G, JC Higgins 42/42DL, Foremost 20, and Revelation 105. Confirm your model number on the left side of the barrel before ordering.
Can this ship to my state?
Not to California, Connecticut, Hawaii, Illinois, Maryland, Massachusetts, New Jersey, New York, Oregon, Rhode Island, Vermont, Washington, or Washington DC — those states restrict magazine capacity above 10 rounds. If you're in one of those states, the 10-round 556-XT10 fits the same rifles.
My magazine feels loose in a Model 80 — is that normal?
On some Model 80 rifles, the magazine's rivet sits slightly proud and can prevent full engagement, which shows up as looseness. Grinding down the rivet or trimming the bottom magazine plate resolves it. If your magazine has significant front-to-back play, contact ARM before ordering another one.
Is a 15-round magazine legal in my state?
Magazine capacity laws vary by state, and this magazine can't ship to the states listed above. Check your state's rules before ordering.
How do I keep this magazine feeding reliably?
Wipe the exterior down with a dry cloth after range use, check for dirt or powder residue in the feed lips, and avoid over-lubricating — a light coat is enough, since too much oil attracts grit. Inspect the feed lips and follower for bends or damage before you load it, and store it with the spring at rest rather than fully compressed for long periods.
Is this a genuine factory-pattern magazine?
Yes. It's manufactured in the USA to the original Marlin factory pattern from US steel and US components, not an imported copy.
Do you sell to dealers or in bulk?
Yes. See our wholesale purchasing page for terms.
Order yours today
Add this magazine to your cart and more than double your capacity on the range.
Outfitting a range, shop, or FFL? See our wholesale purchasing terms. This magazine also fits Marlin-built .22s sold as Glenfield, JC Higgins, Western Auto, and Foremost — see the rebadge fitment guide. Browse the full .22 LR Marlin magazine collection, recheck fitment on the Marlin Magazine Fitment Guide, or see the 10-round compliant version.