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JP Adjustable Gas System

The JPGS-3 model is our railed small bore design with a Picatinny top rail to allow attachment of quick-detach accessories such as front sights, lights and lasers.

This model also now includes our locking adjustment feature, which consists of an integral brass 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


  • Material: 6061 aluminum
  • Finish: Black hardcoat anodizing
  • Weight: 2.5oz
  • Length: 1.875"
  • Height: 1.650" (overall), .930" (over bore)
  • Width: 1.23"
  • Attachment: 8-32 x 1/2" socket head screws, 9/64 hex drive
    (includes 5/64" x 1/2" roll pin for gas tube installation)
  • Adjustment: 6-32 x 3/8" stainless set screw, 1/16 hex drive (hex key included)
Made in the USA

Gas Tube Installation:

Price: $79.95