At a glance:
- Shot-peened spring offers longer life than factory spring
- Reduces failure-to-feed issues
- Replaces old, broken mag springs
Upgrade your Ruger® Mark™ Series magazines with aftermarket Ruger® magazine springs from TANDEMKROSS. Magazine springs wear and tear over time, reducing the performance of your magazines and resulting in failure-to-feed issues. Don't let an underperforming or missing spring derail a shooting sports competition or day at the range!
The Green Springs Magazine Springs for Ruger® Mark Series (3-Pack) are shot-peened for a significantly longer life than the factory spring. The upgraded magazine springs reduce failure-to-feed issues and are an ideal replacement for your old, broken magazine springs. Sold in 3-packs, "Green Springs" are an ideal upgrade to keep in your range bag for easy maintenance on the go.
The dark green color of the magazine springs is a simple way to show your #TANDEMIZED pride and keep your upgraded springs separate from factory springs.
Supported Models:
- Ruger® Mark I™
- Ruger® Mark II™
- Ruger® Mark II™ 22/45™
- Ruger® Mark III™
- Ruger® Mark III™ 22/45™
- Ruger® Mark III™ 22/45 LITE™
- Ruger® Mark IV™
- Ruger® Mark IV™ 22/45™
- Ruger® Mark IV™ 22/45 LITE™
TANDEMKROSS firing pins, extractors, and springs are protected against mechanical failure for two years after the time of purchase. Learn more about our warranty and return policies here.

70 Reviews
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Green springs
Arrived in a timely manner springs seem to be as advertised
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springs
very nice upgrade.....................
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Love em
A smoother operating and stronger spring. Great value especially with free shipping coupon. Definitely recommend.
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Green Springs
Easy to install, and MKIV has not had a problem since. Using it in Steel Challenge so it gots shot quite a bit.
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Green Springs
These are a must if you shoot steel challenge. They help with feeding issues from your Rugar magazines.
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Mag springs.
Easy install works great. Thanks Tandemkross. 5297115b6
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GREEN SPRINGS
THESE SPRINGS ARE OF VERY HIGH QUAITY, I REPLACED THE SPRINGS IN TWO OF MY MAGAZINES FOR MY RUGER MK1 AND THE PISTOL SHOT MUCH BETTER THEN WITH THE OLD SPRINGS. THE THIRD SPRING I REPLACED THE SPRING IN MY MK2 MAGAZINE AND IT CURED THE FEDING PROBLEM, WILL ORDER MORE SOON TO HAVE ON HAND.
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"Green Springs"
Definitely stronger than the factory springs I replaced. No feed problems since replacement.
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Review
Bought two sets of 3 springs. They made a huge difference in the failure to feed issue. Coupled with the mag follower. The problems have been eliminated!