MagPul MBUS Gen.1 Rear Back-Up Sight (MilSpec Version / Black) is designed for use with real guns. The windage adjustments are more precise than that of the PTS MBUS, and they feature a more solid construction so it keeps it's zero in spite of the gun's recoil. The MagPul MBUS Sights are a great innovative flip sight system for the M4/M16. The sight bolts firmly to the weaver rail. Each sight is spring loaded in the down position with ambidextrous release buttons. These are great back up sights for any gun with a continuous flat top rail.
The Genuine Magpul line of accessories are made in the USA and designed for use with real firearms. Magpul PTS (Professional Training System) is designed for airsoft/training use.
Very great Iron Sight. Looks great on my SCAR. I wasn't disappointed in the quality of the sight. Looks and feels very durable. The two aperture sights are hard to switch but you will rarely use the small one.
Small con: To switch the sights is a little hard.
But other than that, its really good and worth it!
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