Safariland 6390Rdso832131 Als Black Fits Glock 17 Mos Gen 3-4 Compatible W/ Surefire X300U Right Hand

The Safariland 6390RDS ALS holster is a duty-grade, right-hand draw holster engineered for Glock 17 MOS pistols (Gen 3 and Gen 4) equipped with a SureFire X300U tactical light. Built for shooters who carry a weapon light—whether on duty, at the range, or in a defensive carry role—this holster combines Safariland's proven Automatic Locking System (ALS) with a design that accommodates modern optic cuts and mounted lights without compromise.

The ALS mechanism secures your pistol the moment it's holstered, providing consistent retention and a level of safety suitable for active-duty and professional use. The holster is molded to fit the Glock 17 MOS platform specifically, ensuring a snug, predictable fit while allowing the X300U light to mount without interference. The right-hand draw orientation suits the majority of shooters and works seamlessly with standard carry positions.

Black finish provides a professional, low-profile appearance and resists corrosion during regular carry and training. If you're running a modern Glock 17 with an optic-ready slide and light attachment, this holster eliminates guesswork about compatibility and retention—it's built exactly for that configuration.

Key Features

• Automatic Locking System (ALS) for consistent, hands-free retention
• Molded specifically for Glock 17 MOS (Gen 3 and Gen 4)
• Accommodates SureFire X300U tactical light
• Right-hand draw
• Black finish
• Professional-grade holster suitable for duty, training, and defensive carry

Specifications

Brand	Safariland
Model	6390RDS
Firearm Fit	Glock 17 MOS (Gen 3 and Gen 4)
Light Compatibility	SureFire X300U
Draw Hand	Right Hand
Retention System	Automatic Locking System (ALS)
Color	Black

Frequently Asked Questions

Will this holster fit my Glock 17 with an optic and light?

Yes—the Safariland 6390RDS is molded for the Glock 17 MOS platform and is designed to work with the SureFire X300U light. The MOS (Modular Optic System) cut is supported, allowing the holster to accommodate modern optic-ready slides.

What is ALS and how does it work?

ALS (Automatic Locking System) is Safariland's proprietary retention mechanism. The moment your pistol enters the holster, an internal lock automatically engages, securing the firearm without requiring any additional manual safety lever. It provides reliable retention for duty and professional use.

Is this a right-hand or left-hand holster?

This is a right-hand holster, designed for shooters who draw and fire from the right side of their body.

Will this work with Glock 17 Gen 3 and Gen 4?

Yes, this holster is compatible with both Glock 17 MOS Gen 3 and Gen 4 variants.