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If your 45 ACP magazines have seen years of range time or carry, this spring and follower kit brings them back to top form without replacing the magazine body. Wilson Combat designed the flat-wire spring to work harder and last longer than conventional coil springs, holding feeding tension through thousands of rounds.
The MAX flat-wire construction is the real difference here. Instead of a traditional coil that can fatigue and lose tension over time, the flat-wire design handles stress differently. It won't get over-compressed from sitting loaded for months, and Wilson Combat guarantees it won't require replacement after high round counts or daily extreme duty use. This is especially valuable if you rotate between multiple magazines or rely on your guns for defensive purposes.
This kit fits Wilson Combat 500, 500B, 500C, and 500BC series magazines without any issues. It also retrofits into other ETM 8-round 45 ACP magazines. Drop it in and you're done. If you're working with Wilson's 47 Series full-size magazines, the upgrade does reduce capacity by one round due to the extra coils, so just be aware of that before you install.
The heat-treated polymer follower pairs perfectly with that flat-wire spring, giving you a team that handles everything from light target loads to +P ammunition. You get up to 25% more strength compared to stock 1911 mag springs, which translates to more reliable slide lockback when the mag empties and better feeding consistency under pressure. The stainless construction resists corrosion in humid or marine environments, a common culprit in spring fatigue.
It installs directly into Wilson Combat 500 series magazines without any issues. The kit also retrofits into other Wilson ETM 8-round 45 ACP magazines. If you have older Wilson 47 Series full-size magazines, the upgrade will reduce their capacity from 8 to 7 rounds due to the extra coils in the flat-wire spring. Always verify your magazine model before ordering.
Flat-wire construction distributes stress differently than traditional coiled springs, so it resists over-compression and fatigue. Wilson Combat guarantees the spring won't require replacement after high round counts or daily extreme duty use. It also maintains feeding tension longer and delivers about 25% more spring force than stock 1911 magazine springs.
Yes. The kit is specifically tested and rated for both light target loads and +P defensive ammunition. The increased spring strength and quality construction make it ideal for defensive loads and any high-pressure application.
Wilson Combat designed this kit for long-term durability, but magazines that stay loaded or see daily use benefit from annual replacement to maintain flawless function. The flat-wire spring won't degrade like conventional springs, but preventive maintenance keeps feeding reliable.
| UPC | 811826021106 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | 500SFK-8HD |
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