This holster is for Glocks with Insight M3 Light or Streamlight TLR1.  

Safariland 6004 SLS Tactical Holster w/ MOLLE Plate Adapter, Right Hand, Tactical Black - For Glock 17, 22 — Holster Type: Thigh Holster, Hand: Right, Color: Black, Gun Make: Glock, Gun Model: Glock 17, Glock 22, Glock 31 — 6004-832-121-MS8