This gas block replaces your existing front sight and allows the user to mount accessories to its two Pic rails.

This gas block allows mounting YHM forearms removing your muzzle accessory.

• Gas port size: 0.125″
• Mounts via four socket head cap screws w/ a 7/64″ Allen wrench
• Bore diameter .750 inches
• Made from high quality steel
• Mil-Spec phosphate coating.
• Made in USA

This gas block replaces your existing front sight and allows the user to mount accessories to its two Pic rails.

This gas block allows mounting YHM forearms removing your muzzle accessory.

• Gas port size: 0.125″
• Mounts via four socket head cap screws w/ a 7/64″ Allen wrench
• Bore diameter .750 inches
• Made from high quality steel
• Mil-Spec phosphate coating.
• Made in USA