HOLSTERS WILL FIT: Heckler & Koch | 4.41" BBL | With With Light | USP .45 with Spurred Hammer and Surefire Mount MR09, Inforce APL, Olight PL-Pro or Valkyrie, Nightstick TWM-350, TWM-350S, TWM-850, TWM-850S, ITI M3, M6, TLR-1, TLR- 1HL, TLR-2, Surefire X200, X300, or Insight XTI Procyon light