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Fit Finder › What fits my holster?
Safariland holster number
6390RDS-28321
Safariland ALS RDS Mid-Ride Duty Holster, Level I Retention
Your holster
Safariland 6390RDS-28321 · ALS RDS Mid-Ride Duty Holster, Level I Retention
What does it fit?
Confirmed by SafarilandGlock 19 · 45
FitsGlock 19 · 45
Lighttakes a weapon light
Opticred-dot cutChoose what to view
Pick a tab: what we have on the shelf now, or every pistol this holster fits.
Every pistol this holster fits
From Safariland's fit chart. Tap yours to check it.
Listed in Safariland's official fit guide.
Tested by Chicks Open Carry for fit and proper retention, in the exact setup shown — generation, light and optic. Not listed by the brand.
Understand this model number
Where to find it on your holster
You've got the first two. Safariland makes the 6390RDS in 6 finishes — which is yours?
Which finish is it?
From Safariland's 2025 order guide for the 6390RDS.
Which side does it go on?
Your holster
The finish number varies by model — the words are what matter when you shop.
Letters after the number? Safariland adds them for factory-installed extras: -S Sentry, -SH hood guard and Sentry, -AG ALS Guard, -AGH hood guard and ALS Guard, -VUBL vertical belt loop.
Cross-fits confirmed by Chicks Open Carry
Guns we've tested in this holster ourselves — beyond Safariland's chart.
Glock 19 Gen6light: Streamlight TLR-2 or TLR-2HL, optic: Sig Romeo1 Pro · Vortex Viper or Venom · Trijicon RMR, RMR HD, RCR, SRO · Deltapoint Pro · Holosun 407, 507, 508, or 509 · Aimpoint ACRO, or Burris FastfireConfirmed by Chicks Open Carry
Glock 19 Gen6light: STREAMLIGHT TLR-2, TLR-2HL, optic: Sig Romeo1 Pro · Vortex Viper or Venom · Trijicon RMR, RMR HD, RCR, SRO · Deltapoint Pro · Holosun 407, 507, 508, or 509 · Aimpoint ACRO or Burris FastfireConfirmed by Chicks Open Carry
From Safariland's own fit chart: Concealment, Duty & Tactical Holsters for Pistols with Optics (PT4, rev 2026-08-12). Safariland is its owner's trademark; Chicks Open Carry is not affiliated with it.