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- Remington 541/581 20 round
Product Description
In stock.
A free stainless steel loading tool is included with each order.
Video showing loading tool HERE
20 round capacity that fits the Remington 541/581 series.
Finish is Black Oxide over carbon steel, with a stainless follower.
These magazines are fully laser cut, and are welded.
View holes at 3,5,10,15 and 20.
Magazine feed will be slightly sticky the first couple uses.
We recommend inserting the magazine on an open bolt.
Product Reviews
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A Huge Game Changer for a Great Rimfire Rifle.
Posted by Kelly S. on 17th May 2026
I have three of these now, and they've made a huge improvement to the quality of my range trips. I can load 60 rounds into them the night before I go out, and when I get to the range, I can start shooting and keep shooting for a long time before I even have to reload. I tested how long they can stay loaded, and I can tell you that after a few months being loaded, they also work without a hiccup. They function flawlessly, and there isn't a single hitch when running the action at speed with them.
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glad to have it...
Posted by Dirty-D on 5th May 2026
I bought this and several 10 rounders to shoot my old remington 541-S in PRS rimfire competitions. the 20 would be a gerat advantage, it feeds and funcitons fine, but it is a little long, and the mag release lever doesn't hold it as well as the 10- rounders. I will work on the lever, but this magazine will probably be reserved for long stages where 20 I will either need more than 30 rounds, or i'll be moving alot without alot of time to reload and will need the 20...
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A Great Reason to Bust out the Ol' 581 again
Posted by Kelly S. on 29th Nov 2025
I ran a test batch of the 20, 15 and 10-round magazines through my 581-S last summer and couldn't wait for these to finally be in stock so that I could buy more. The description says they'll be sticky the first couple of times, but the ones I tested were not. They loaded to full capacity and fed without a hitch. They absolutely blow away the OEM magazines. CSSPECS has done what Remington should have done from the outset. These are just the best magazines anywhere.