The Samson AC-556 Style Gas Block combines a low-profile .750" gas block with an integrated front sight post, providing a backup iron sight solution for AR-15 platform rifles.
Type: Gas Block with Integrated Front Sight
Barrel Diameter: .750"
Sight Post: A2-style, adjustable for elevation
Material: Steel
Finish: Black
Mounting: Set screw (pins recommended for permanent installations)
Compatible With: AR-15 platform rifles with .750" gas journals
