Allows tuning the AR15 bolt velocity to reduce bolt slamming, manage recoil, and increase accuracy potential. The JPGS-8 model gas block is our low profile large bore (.936 dia) model with a non-railed design to fit under extended handguards. This model also now includes our locking adjustment feature, which consists of an integral set screw that can be tensioned against the adjustment screw after it has been set to prevent any migration that might occur.

• Full coverage around gas port providing improved seal and better heat dissipation
• True clamp-on design with three positive clamping screws
• Easy to access side gas adjustment
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• Also available in .750 dia bore