JP Railed Adjustable Gas Block Picatinny Rail, .750" Bore, Includes JP's Locking Adjustment, AR-15

The JPGS-3 model is JP's 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 JP's 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 Specifications: 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)