JP Adjustable Gas System
A2/M4 sight
.750 bore
Black Stainless
Locking Adjustment

The JPGS-2FS is an A2/M4 front sight assembly that replaces existing pin-on assemblies and provides a gas adjustment. This unit can also be used as a front sight only to extend the sight radius of any existing carbine or rifle.

This is a standard-height A2 front sight gas block, not the taller "F-marked" height.

• Full coverage around gas port providing improved seal and better heat dissipation
• True clamp-on design with two positive clamping screws
• Easy to access side gas adjustment

Specifications:

• Barrel Diameter: .750
  
• Finish: QPQ
  
• Weight: 3.9 oz.
  
• Material: 416 stainless
  
• Weight: 3.9 oz.
  
• Length: 1.870"
  
• Height: 3.400" (overall), 2.650" (over bore)
  
• Width: .870"
  
• Attachment: 10-32 x 1/2" socket head screws, 5/32 hex drive
  (includes 5/64" x 5/16" roll pin for gas tube installation)
  
• Adjustment: 8-32 x 1/4" stainless set screw, 5/64 hex drive (hex key included)