Shoulder Holsters for Glock 21

How To Choose The Best Shoulder Holster For Your Glock 21

When you're shopping for a new Shoulder holster for you.Glock 21, knowing exactly what you want matters. If you've narrowed it down to a Shoulder holster, you're already on the right path. Below, we’ll walk you through why this carry style might be the ideal fit, how to find the best model for your body type and setup, and what materials and add-ons to consider.

Why Choose a Shoulder Holster?

Shoulder holsters are a classic and practical carry option for those seeking comfortable concealed or open carry, especially when waistband carry isn’t ideal. Worn across the shoulders with the firearm positioned under the arm, this style offers balanced weight distribution and easy access.

Ideal for sitting and driving

Shoulder holsters excel for users who spend long periods seated, such as drivers or office workers. Your Glock 21 stays accessible without digging into your waist or being blocked by seatbelts.

Even weight distribution

Designed to spread the weight across your upper body, shoulder holsters reduce pressure points, making them comfortable for extended wear, especially with full-size pistols.

Great for concealed or open carry

Depending on your clothing, shoulder holsters work for both concealed and open carry. Wearing a jacket or overshirt keeps your Glock 21 out of sight while maintaining easy access.

Room for extras

Most shoulder holsters include off-side magazine pouches, allowing you to carry spare magazines or accessories without needing additional belt gear.

Balanced and secure

With dual-strap harnesses and adjustable positioning, shoulder holsters stay in place, providing stability, comfort, and control while you’re on the move.

Best for full-size firearms

Shoulder holsters comfortably support the weight of full-size pistols and revolvers, making them popular among professionals, outdoorsmen, and those carrying heavy handguns.

Whether you’re carrying for duty, travel, or everyday concealment under jackets, a shoulder holster keeps your Glock 21 secure, balanced, and ready.

How to Choose the Right Glock 21 Shoulder Holster for Your Body and Lifestyle

Body fit and harness adjustability

Choose a shoulder holster with fully adjustable straps to fit your chest and shoulders comfortably. Slim builds may prefer tighter harnesses, while larger frames benefit from wider straps with padding.

Vertical vs horizontal carry

Vertical rigs hold your Glock 21 pointing downward for better concealment and security with full-size pistols. Horizontal rigs allow faster cross-body draws, often preferred for mid-sized handguns.

Gun size compatibility

Ensure your holster is molded specifically for your Glock 21 for proper retention and safe carry. Shoulder holsters work best with mid to full-size firearms.

Handedness

Select a holster designed for your dominant hand. Right-handed users carry under the left arm for a natural draw, and left-handed users carry under the right arm.

Retention and safety

Look for holsters with strong retention systems such as thumb breaks to keep your firearm secure during movement while still allowing for a quick, smooth draw.

Comfort features

Choose models with breathable, padded harness materials to reduce irritation during long wear, especially if used under heavy jackets or tactical gear.

Check out other holster carry styles

Be sure to check out what other carry styles we have:

IWB Holsters

OWB Holsters

Appendix Holsters

Ankle Holsters

Belly Band Holsters

Chest Holsters

Concealed Carry Holsters

Cross Draw Holsters

Drop Leg Holsters

Duty Holsters

Pocket Holsters

Paddle Holsters

Small Of Back Holsters

Light Bearing Holsters

Red Dot Sight Holsters

Light And Red Dot Holsters

Leather Holsters

Kydex Holsters

Nylon Holsters

Choosing the best Shoulder   holster for your Glock 21 comes down to fit, comfort, and confidence. Whether you carry concealed every day or need something rugged for outdoor use, this carry style delivers dependable performance.