HOLSTERS WILL FIT: Glock | 4.50" BBL | With Light | 17, 22, 31 Gen3-4 W/ ITI M3, M3X, M6, M6X, Inforce APL, Olight PL- Pro or Valkyrie, Nightstick TWM-350, TWM-350S, TWM-850, TWM- 850S, Streamlight TLR-1, TLR-1Hl, TLR-2 or TLR-2HL NOTE: Retention is reduced by removal of light