Knights Armament BUIS Replica Metal Folding Front Sight for 20mm Rails, KAC M4, with Top and Bottom Zeroing

[Compatible Airsoft Guns] ■ Can be attached to various airsoft guns with a 20mm rail. [Installation Ease] ★☆☆☆☆ | Securely fastens with a single flathead screw. This is a replica of the "KAC M4 Folding Front Sight" by Knights Armament, USA. Compatible with airsoft guns' 20mm rails, it can be attached to a wide range of rifles and submachine guns. The original is a folding front sight adopted by the US military's special operations "SOPMOD rifle system," and is used by the US Army and Marine Corps, as well as law enforcement agencies and shooters around the world. A replica of the same shape is also fitted as the front sight for Tokyo Marui's gas blowback machine gun, the "Mark XVIII Mod 1.