- Reduce 70% of Failure-To-Feed (FTF) malfunctions
- Extra Power Replacement Springs to Magazine Improve Feeding Operations
- Heavy Gauge Premium Spring Steel
- 15% Stronger AR-15 Magazine Spring over Factory Mag Spring
- Works for GI Mags, Magpul PMAG's, ProMags and similar variations of these (Except Hexmags)
- Change fully loaded magazines every 90 days by unloading and reloading a different fresh magazine.
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AR-15 Extra Power 30 Round Magazine Spring Replacement:
- Heavy Gauge Premium Spring Steel Extra Power AR-15 Magazine Spring Replacement
- Works for GI Mags, Magpul PMAG's, ProMags and similar variations of these (Except Hexmags)
15% Stronger AR-15 Magazine Spring over Factory Mag Spring
When leaving your 30 round magazine loaded for any extended period of time your magazine spring will eventually take a set, thereby reducing the amount of load it can handle. This results in a weaker magazine spring that will not properly present the next round for your bolt to grab and feed into the chamber.
Remember to change out your fully loaded magazines every 90 days by unloading and reloading a different fresh magazine.
Replace your weaker factory AR-15 mag spring with the Best Extra Power AR-15 Mag Spring that will last longer and provide greater operating performance. If you are rebuilding your GI Mags or just upgrading your brand new PMAG's it's worth doing now before your next Failure-To-Feed Malfunction. You should also use this opportunity to clean the inside of the magazine, inspect the follower and floor plate and inspect the feed lips for any damage or cracking. It's a great preventative maintenance that should be conducted every 3 months to ensure reliability of your AR-15.
The M*CARBO Extra Power Mag Springs improve reliability a lot, rebuild or not!
If you plan to store your mags fully loaded like the rest of us then over time you should be concerned that your factory mag spring will eventually lose it's intended stiffness. It's never a bad idea to keep back-up replacement parts in case of panic buying in the future. If you have a 10 round blocked magazine and you move to a state where 30 round mags are allowed, you can use these to convert the restricted mags.
AR-15 Extra Power 30 Round Mag Springs will work for GI Mags, Magpul PMAG's, ProMags and similar variations of these. **Will not work for Hexmags**
Most Shooters report that these M*CARBO Extra Power AR-15 Mag Springs feed much better than factory and provide more reliability. The stiffer magazine spring puts more tension between the floorplate and follower, while holding 30 rounds per mag. Go ahead and switch out the weaker standard mag springs with the Best AR 15 Extra Power Mag Springs to give yourself the most reliability and performance out of your AR.
Q: How does this spring affect the feed lips on polymer mags? Would the extra tension cause them to "flex" sooner?
A: The extra tension won't compromise the structural integrity of the feed lips. We designed this spring to provide extra power but not so much that it creates extra problems. Thanks for asking that one.
AR-15 Resources:
Use the following AR-15 Resources to further enhance your firearm. Download the Official Army Training Manual. Use the different Exploded Views of the AR-15 Parts Diagram to plan your next firearm project. Print or Download any of the AR-15 Resources.
- Build your own AR-15 Lower
Tested and Approved:
The AR-15 Extra Power Mag Spring has been tested repeatedly to ensure reliable operation and safety.
ATTENTION:
You must be 18 yrs of age to purchase. We advise that all parts purchased from our inventory be installed and inspected by a qualified gunsmith. Modifying your weapon may be prohibited in your state. Do not modify your sear or hammer engagement surfaces, with or without the AR-15 Extra Power Mag Spring. Before installing please be sure to check all local state and federal laws. By installing this part you agree to take full responsibility for any and all legal, health and warranty consequences that may be incurred.
Lancer mag spring replacement
I ordered some of these mag springs for my lancer 30 rd and they fit perfect and feel better, will order a couple more to keep Incase.
Lancer mag spring replacement
I ordered some of these mag springs for my lancer 30 rd and they fit perfect and feel better, will order a couple more to keep Incase.
Smooth
Very high quality springs, first install was super smooth. Most aftermarket springs feel like they are binding up and breaking them in sucks. But not their springs like butter.
Awesome springs! Replaced all my AR15 mags. The difference is noticeably. Mags work flawlessly! Thanks again!
these springs have more tension
i like the extra spring tension i leave some of my magazines loaded these are ideal for me for what i feel is reliabilty when it counts for the money you cant go wrong .
Extra Power helps mags function
Was having multiple "failure to feed" issues when shooting "rapid fire". Changed to the "extra-power" springs and solved the problem. The springs made the magazine function without any misfeeds.
BIG DIFFERENCE
Once I opened the package I knew these springs were a game changer. It was a simple swap and I have the confidence that my ammo will feed each and every time I pull the trigger
Does appear to be 10% stronger, fits Magpul mags perfectly, but may need a little bending to fit Lancer mag's follower better.
The springs have the same number of coils as the OEM Magpul and Lancer springs for the 30 rd mags, but they weight 10% more (22 vs 20 grams), thus, assuming similar steel being used, they should be 10% stronger.
I took one star off because while the springs fit the Magpul mags just fine, I did have to bend the top coil a little bit to get it snap into the Lancer mag followers so that it sat flat. Also, the top coil's shape was not consistent across all springs -- some required more or slightly different bending to fit the Lancer mag followers properly.
Will these springs work with a Magpul PMAG Gen M3?
Will these work with lancer magazines?
We haven't tested on that magazine, but it works in all stander size magazines.
Any reason these are not recommended for Palmeto state and Surefeed mags? Minimum Standard 30 rounds.
Due to comparability issues
I’m converting some Magpul gen M3 mags from 5.56 to 300 blk. Will these springs work for that purpose?
January 29, 2023 10:13 PM
Do you’ll have a spring replacement for a 10 round clip? If so what is the order #?
BullyG January 26, 2023 9:16 AM
We do not, we only carry the spring for the 30 round standard capacity magazines.