JP Adjustable Gas System for AR type rifles.

• Picatinny rail design allows installation of quick-detach accessories such as front sights, lights and lasers
• Material: 6061 aluminum
• Finish: Black hardcoat anodizing
• Weight: 2.5oz
• Length: 1.875"
• Height: 1.650" (overall), .930" (over bore)
• Width: 1.225"
• Attachment: 8-32 x 1/2" socket head screws, 9/65 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)