The 92SB, initially called 92S-1, was specifically designed for the USAF trials (which it won), the model name officially adopted was the 92SB. Features added include a firing pin block (thus the addition of the "B" to the name), ambidextrous safety levers, 3-dot sights, and relocated the magazine release catch from the bottom of the grip to the lower bottom of the trigger guard. The later relocation of the magazine release button means preceding models (92 & 92S) cannot necessarily use later magazines, unless they have notches in both areas.