5.11 believe that the 5.11 Thumb Drive M&P Compact Series (9/.40/.357) R/H, 3.55in. (50097-019)is the safest and fastest-drawing Level II holster available on the market today. It features 5.11′s exclusive thumb-activated safety that secures your weapon at all times, and with the optional Chop-Block feature, helps prevent others from removing it during a weapon retention struggle.