Sprinco M-4 / AR-15 Carbine Reduced Power Buffer Spring - For Collapsible Stocks (Yellow Spring)
This Chrome Silicon recoil spring is made by Sprinco USA to the highest quality standards available. It is stress relieved for long service life and Moly-Plated for corrosion resistance. These springs last for an incredibly long time and do not lose their strength. Test samples of these springs have been tested for over 100,000 rounds in an M-4 Carbine without a measureable deterioration in power, performance or reliability.
The Standard Power spring is for weapons that cylce properly and have no reliability problems with a standard power spring. It is designed to provide improved consistency, long service life and sustained reliability of a high quality spring with the standard spring weight so you don't have to worry about replacing it. An Standard Power spring is a good choice is you like the way your rifle cycles but you want a higher quality spring that will give you excellent reliability and consistency over a very long service life. Many manufacturers cut corners on the quality of springs they use in their rifles to save money. But some of the manufacturers of the highest quality AR rifles are starting to realize the benefits of using top of the line springs like these from Sprinco. Don't cut corners with cheap springs, get the best and you will be glad you did.