Our 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 “boing” sound made by the traditional steel spring. The extra energy provided by the Hydra® 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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|Dimensions||13 × 1 × 1 in|