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Brownells 75th Anniversary - A Shooting Heritage
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The SI JitterPlug is a drop-in component that installs in a stock polymer guide rod for compact and full-size Glocks. Installed between the guide rod and the front of the lower locking lugs, the SI-GJP increases spring tension on the barrel and slide, improving lockup feel and removing that annoying Glock barrel rattle.

STRIKE INDUSTRIES - JITTERPLUG FOR GLOCK®

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