Description
The Safariland 6390RDS was made for one job and does it well: carrying a full-size SIG P320 that's set up with both a red dot optic and a weapon light. A lot of duty holsters make you choose one or the other, but this one has the clearance and molding to run both at the same time. It fits the P320 Full Size, P320 RX, and the SIG M17 with a 4.7-inch barrel, and it plays nice with popular lights like the SureFire X300, X300U, Streamlight TLR-1 and TLR-1HL, along with optics such as the Trijicon RMR, Leupold DeltaPoint, and similar footprints. This particular model is the left-hand version in black STX Tactical finish.
What the ALS Does on the 6390RDS
The heart of this holster is Safariland's Automatic Locking System. When you seat the pistol, an internal lock grabs it and holds it in place from every direction, with no thumb breaks or snaps to fuss with. To draw, you deactivate the ALS lever with your thumb and pull straight up. It's clean, repeatable, and fast once you've run it a few times. Out of the box it's a Level I retention setup, and if you want another layer of security you can add a Safariland ALS Guard to bump it up to Level II.
Mid-Ride Carry and Build Quality
The mid-ride belt loop pulls the holster in tight to your body and sets the butt of the gun near your belt line, which keeps things comfortable through a full shift or a long day. The shell is thermal-molded SafariLaminate, so it's tough and holds its shape, and the inside is lined with suede to keep your slide, optic glass, and finish from getting chewed up. There's also an open-top design for a quick, unobstructed draw.
For anyone carrying a duty-ready P320 with a light and optic combo, the 6390RDS is one of the most trusted platforms out there. It's the kind of gear that just works and keeps working, which is exactly what you want on a duty belt.
Key Specifications
- Manufacturer: Safariland
- Model: 6390RDS
- Manufacturer Part Number: 6390RDS-4502-132
- UPC: 781602801478
- Product Type: Duty Holster
- Retention Level: Level I (ALS)
- Fits: SIG P320 Full Size, P320 RX, M17 (4.7 in barrel)
- Light Compatibility: SureFire X300, X300U, Streamlight TLR-1, TLR-1HL
- Optic Compatible: Yes, red dot ready
- Hand: Left
- Ride Height: Mid-Ride
- Material: SafariLaminate (thermal-molded)
- Lining: SafariSuede
- Finish: STX Tactical Black
- Carry Style: OWB / Belt
What’s Included
- Safariland 6390RDS ALS Mid-Ride duty holster (left hand)
- Mid-ride belt loop attachment
Frequently Asked Questions
Does the 6390RDS require a weapon light to work?
Yes, this holster is molded around a light-equipped pistol, so your SIG P320 needs a compatible weapon light mounted for it to seat and retain properly. It's built for lights like the SureFire X300, X300U, and Streamlight TLR-1 or TLR-1HL. Running the gun bare without a light won't give you a secure fit.
Can I run a red dot optic with the 6390RDS?
That's exactly what it's designed for. The holster has the clearance to carry a SIG P320 with both a red dot and a weapon light at the same time, which is the whole point of the RDS line. It works with common footprints like the Trijicon RMR and Leupold DeltaPoint.
Is the 6390RDS a Level I or Level II retention holster?
Out of the box it's Level I retention using Safariland's ALS, which locks the gun in automatically when you holster it. If you want extra security, you can add a Safariland ALS Guard (sold separately) to convert it to Level II. That upgrade is a popular move for officers who want more protection against a takeaway.
What SIG models does this 6390RDS fit?
This version fits the SIG P320 Full Size, P320 RX, and the M17 with a 4.7-inch barrel. It's set up for left-hand draw in black STX Tactical finish. Double-check your pistol's slide and light combo against the fit chart before ordering to make sure everything lines up.





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