There’s little doubt that issued BUIS from MATECH, KAC and ARMS are seen on the majority of SOF blasters. But what about aftermarket ones?
The most popular seem to be Magpul MBUS and Troy Battle Sights.
It’s an interesting one, because these BUIS represent the economy and high end of the market (MBUS and Troy, respectively).
Troy front, MBUS rear:
Blaster evaluation time. MBUS rear:
Lots of rear MBUS:
Troy front and rear: