









Glock 20, 21 OWB Classic Clip-on Holster
Compatible Firearm(s): Glock 20, 21
Elevate your shooting performance with the OWB Classic Clip-on Holster, trusted by top-tier marksmen and discerning shooters worldwide. Crafted from high-strength .080″ Kydex via precision thermoforming, it delivers lifelong durability and unparalleled firearm protection. Featuring adjustable retention with a positive-click feedback, vertical mounting holes, and a speed-cut design, this holster ensures a flawless draw and customizable ride every time, while its optics-ready low-cut profile ensures pinpoint accuracy.

Optimized for Performance & Reliability
Designed with IDPA compliance at its core, the OWB Classic Clip-on Holster offers a fixed ride-height and an immaculate, firearm-specific fit. Its lightweight, streamlined construction adds minimal bulk and includes full sight channels for standard and suppressor sights (up to 10 mm), plus an open muzzle end for threaded barrels. Proudly made in the USA, it seamlessly integrates with 1.5″–2″ belts for comfortable, all-day carry.
Outside the Waistband (OWB) Clip-On Holster
Strong-Side Carry (3 O'clock)
Fits 1.5"-2" belts
Supports Slide-Mounted Optics
No
Yes – retention is adjusted via a screw for precise control of the holster’s grip on your firearm
Supports sight heights up to 10 mm
Durable 0.08” thick Kydex construction

Precision-Fit Construction
Each holster is custom molded to the unique contours of your specific firearm and subjected to rigorous quality and draw testing, ensuring a flawless, dependable fit that feels tailor-made for your gun.

Custom-Tuned Retention System
Features a precision-machined tension screw allowing you to fine-tune draw resistance; every re-holster delivers a reassuring tactile “snap,” so you know at a glance—and feel with every movement—that your weapon is locked securely in place.

Speed-Cut Draw Lip
Engineered relief cut at the muzzle end reduces friction and snags during the draw, guaranteeing a smooth, uninterrupted presentation even under pressure.

Low-Cut Profile
Channels accommodate standard sights, suppressor-height sights (up to 10 mm), and loaded-chamber indicators, while the low-cut, optics-ready profile seamlessly fits red-dot attachments (RMR, SRO) for fast, unobstructed target acquisition.

IDPA-Compliant Draw Angle
Fixed 90° ride-height design meets IDPA regulations, ensuring a rule-ready, consistent presentation on every draw.

Threaded Barrel Compatibility
Open-muzzle design allows use with threaded barrels, compensators, or muzzle devices—so you can personalize your firearm’s performance without holster modifications.

Universal 1.5″–2″ Belt Clip Interface
Clip-on attachment works seamlessly with belts from 1.5″ to 2″ wide, providing a rock-solid, comfortable all-day-carry solution that’s quick to attach and detach.

Comfort-Driven Construction
Smooth, rounded edges and a low-profile form prevent snagging and pressure points, ensuring comfortable, all-day carry.
Lifetime Warranty
At Maxtor Tactical, our commitment to excellence doesn’t end at checkout—it lasts a lifetime.
Should your holster crack or fail under normal use, simply contact our support team and we’ll arrange a repair or replacement at no cost. Our specialist customer service staff is dedicated to prompt, hassle-free assistance so you can carry on with complete confidence.