HOLSTERS WILL FIT: Glock | 4.00" BBL | With Light | 19, 19X, 45 Gen3-5, 23 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