Bushmaster Gas Piston Retrofit Conversion Kit AR-15 Carbine

Product #: 564378 Bushmaster #: GP-GSR UPC #: 0420609779

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Product Information

This kit eliminates gas rings and gas tubes. Installing this on an AR15/M4 Carbine will help increase the reliability of your firearm, allow the firearm to remain cooler under heavy firing and will also make maintenance easier. Once installed, the gases are vented under the handguard and away from the shooter. Requires no permanent modification to the firearm.
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