MGI Super 2X AR-15 Recoil Buffer Spring
MGI's SUPER 2X main (recoil) spring is unique in that it is made from music wire. This not only increases the strength of the main spring by more than 2 times that of a conventional main spring but also gets rid of that annoying ?bong? sound made by the traditional steel spring. The extra energy provided by MGI's 2X Main Spring ensures that your bolt locks into battery even in dirty environments, thus increasing the reliability of your firearm.
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