The MBUS (Mark I) iron sights were a simple concept, and a few tests and a working prototype later, Griffin Armament released it to the public at SHOT Show in 2015. It took only a few months before the sights were flying off the shelves and in the hands of gun enthusiasts who wanted to shoot both sides of a rifle without switching out sights. The design is simple enough for a lefty to use in much the same manner as a right handed shooter.
Griffin did do one thing to differentiate this sight from the silicon (or wood) sights. They stuck a little electro-magnetic baseplate with a pair of blue LEDs. The idea being that the LEDS would emit a blue field, which would make the irons particularly easy to see in low lighting conditions.
Fast forward to the present, and the MBUS is now on its third generation of developments. This time around, the new design is magnetic based, and comes outfitted with a color switch on the top to allow the user to toggle between white (normal) and blue (low light).
In addition to this, the design has a few manufacturing changes to help make it more rugged. Gone are the cheap spring loaded parts found on the first and second generation MBUS, replaced with robust stainless spring-loaded pins. The current design has also added a pair of steel guides to give the MBUS a more rigid feel.
The new features of this unit may be a little more appealing to left-handed gunners, but many of the other features remain the same. The MBUS comes with a bright white mounting harness, rear aperture and front pad, and the rear aperture is offset to make it slightly larger than the front. d2c66b5586