9 Best Holster For Glock 21 With Light of 2026 To Ensure Positive Retention

1

WARRIORLAND MB1 Pistol Light and Holster Combo, Fit for Glock

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  9.2
• Brand
  WARRIORLAND

Key specs2

Light Output and Laser

500 lumens with white LED and red laser

Combo Compatibility

• Molded for Glock 20, 21, 22, and 23 Gen 3-5
• Fits Glock 34 Gen 4 with MB1 light
• Integrates dedicated battery power indicator

Pros & cons42

Pros

• Includes a dedicated 500-lumen weapon light with white LED and integrated red laser
• Molded specifically to fit Glock 21 across Gen 3 through Gen 5 frames
• Features an onboard power indicator to track battery status on the light
• Accommodates Glock 20, 21, 22, 23 Gen 3-5, and Glock 34 Gen 4 models

Cons

• Holster retention is molded to the MB1 light and will not fit third-party lights like the TLR-1
• Does not list an optic cut for slide-mounted reflex sights

2

POLE.CRAFT Holster for Glock 20 21 22, IWB Kydex Holster

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  8.8
• Brand
  POLE.CRAFT

Key specs2

Carry Style and Handing

Right-hand inside waistband (IWB)

Rail Clearance Note

This holster is molded strictly for bare-rail pistols and will not accept a Glock 21 with a weapon light mounted.

Pros & cons32

Pros

• Rigid Kydex construction provides positive trigger guard shielding
• Compatible with Glock 21 and Glock 20 across Gen 3, Gen 4, and Gen 5 frames
• Molded for inside-waistband carry with a dedicated right-hand draw

Cons

• Does not accommodate a weapon light, making it incompatible with rail-mounted lights
• Restricted to right-hand carry configurations

3

OWB TLR-1 Holster - Black (Right-Hand, Fits Glock 20,21,37)

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  9.5
• Brand
  R&R Holsters

Key specs2

Supported Weapon Light

Streamlight TLR-1

Belt Carry Profile

The outside-waistband profile keeps the weight of a full-size Glock 21 stable on duty or range belts.

Pros & cons32

Pros

• Formed specifically to secure a Glock 21 equipped with a Streamlight TLR-1 light
• Outside-waistband configuration provides stable weight support for full-size frames
• Also fits Glock 20 and Glock 37 pistols mounted with a TLR-1

Cons

• Listing does not state compatibility with Gen 5 Glock 21 frame dimensions
• Molded exclusively for right-hand draw

4

WARRIORLAND MB3 Pistol Light and Kydex Holster, Fit for Glock

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  8.0
• Brand
  WARRIORLAND

Key specs2

Optic Compatibility

Custom optical cut

Targeting Setup

Combines a compact white LED and green laser system with a matching Kydex holster built for Gen 3 through Gen 5 frames.

Pros & cons42

Pros

• Features a custom optical cut to clear slide-mounted red dot optics
• Includes a rail-mounted weapon light with green laser and white LED
• Molded Kydex design supports Glock 21 models from Gen 3 through Gen 5
• Also fits Glock 20, 22, and 23 Gen 3-5 along with Glock 34 Gen 4

Cons

• Holster locks onto the included MB3 light and cannot accept standard third-party lights
• Lumen output rating for the white LED is not stated in the specifications

5

Black Kydex IWB Holster Compatible with Glock 20 21 Streamlight

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  9.2
• Brand
  TR Holsters

Key specs2

Supported Weapon Light

Streamlight TLR-1, TLR-1 HL, TLR-1S

Concealment Approach

Indexes retention directly on the TLR-1 light body to maintain trigger guard shielding inside the waistband.

Pros & cons32

Pros

• Rigid Kydex construction molded specifically for inside-waistband carry
• Accommodates Streamlight TLR-1, TLR-1 HL, and TLR-1S light housings
• Molded light channel maintains trigger coverage on Glock 21 and Glock 20 frames

Cons

• Carrying a full-size Glock 21 with a TLR-1 inside the waistband requires ample belt room
• Does not state specific frame generation fit for Gen 5 variants

6

POYOLEE Universal Gun Holster with Laser Light IWB Concealed Carry

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  9.5
• Brand
  POYOLEE

Key specs2

Holster Construction

Soft universal pistol case

Retention Characteristics

Soft fabric provides basic waistband carry for various lights, but lacks the rigid trigger enclosure of custom Kydex.

Pros & cons33

Pros

• Flexible soft construction allows universal fit across multiple handgun models
• Accommodates mounted laser and light attachments without a rigid light channel
• Unisex inside-waistband design provides basic concealed waistband carry

Cons

• Soft fabric material lacks the positive snap retention of custom molded Kydex
• Universal fit leaves looser gaps around the trigger guard than model-specific holsters
• Configured strictly for right-handed draw

7

OWB TLR-1 Kydex Paddle Holster - Black (Right-Hand, Fits Glock

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  8.7
• Brand
  R&R Holsters

Key specs2

Mounting Platform

OWB paddle attachment

Duty and Range Fit

The paddle attachment slips over belts quickly while securing a Glock 20, 21, or 37 mounted with a TLR-1 light.

Pros & cons32

Pros

• Paddle mount slips quickly over the waistband without threading through belt loops
• Custom Kydex shell molded specifically for Glock 21 with a Streamlight TLR-1
• Also compatible with TLR-1 equipped Glock 20 and Glock 37 handguns

Cons

• Paddle platform sits further from the body than standard flat belt loop designs
• Listing does not specify compatibility with Gen 5 Glock 21 slides

8

POLE.CRAFT Holster for Glock 20 21 22, IWB Kydex Fits:

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  7.1
• Brand
  POLE.CRAFT

Key specs2

Carry Style and Handing

Left-hand inside waistband (IWB)

Frame and Rail Fit

Designed for left-hand inside-waistband use on Gen 3-5 Glock 20 and 21 frames without weapon lights.

Pros & cons32

Pros

• Built specifically for left-hand draw inside-waistband carry
• Rigid Kydex construction shields the trigger guard completely
• Fits Glock 21 and Glock 20 frames across Gen 3, Gen 4, and Gen 5

Cons

• Lacks a weapon light channel and cannot be used with a mounted tactical light
• Unsuitable for right-handed shooters

9

Black Kydex OWB Holster Compatible with Glock 20 21 Streamlight

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  7.8
• Brand
  TR Holsters

Key specs2

Light Model Support

Streamlight TLR-1 and TLR-1 HL

Belt Rig Stability

Molded outside-waistband Kydex secures the wide Glock 21 slide and high-output TLR-1 housing cleanly on your belt.

Pros & cons32

Pros

• Outside-waistband Kydex molding distributes full-size handgun weight securely
• Engineered to fit Glock 21 and Glock 20 with Streamlight TLR-1 or TLR-1 HL
• Molded retention channel maintains positive lock on the weapon light body

Cons

• Will not fit compact weapon lights or alternative light footprints
• Compatibility across Gen 3, Gen 4, and Gen 5 frames is not explicitly detailed

Last update on 2026-10-04 / Affiliate links / Images, Product Titles, and Product Highlights from Amazon Product Advertising API

Does a light-bearing holster fit any light mounted on a Glock 21?

No, rigid holsters do not offer universal light compatibility. Kydex holsters are molded around the exact dimensions of specific weapon lights, such as the Streamlight TLR-1, TLR-1 HL, and TLR-1S, or bundled units like the Warriorland MB1 and MB3. Because light-bearing designs lock retention onto the light housing rather than the trigger guard, an unmatched light will fail to seat or will produce sloppy, unsafe retention. Always confirm that the holster model lists your exact weapon light before buying.

Is the trigger guard fully covered on a Glock 21 holster with a light?

A properly molded Kydex holster covers the trigger area, but light-bearing designs inherently require an opening wide enough for the light body to enter. Holsters precisely shaped for lights like the TLR-1 minimize this gap to block foreign objects from reaching the trigger shoe. Soft universal holsters lack this rigid structure and can flex around the opening, so verify that your chosen shell maintains stiff coverage directly around the trigger perimeter.

Should you choose an IWB or OWB holster for a full-size Glock 21 with a light?

Your choice depends on whether concealment or carrying comfort is your main goal. An inside-the-waistband (IWB) Kydex holster conceals the large .45 frame inside your pants, but the added width of the slide and light requires a rigid gun belt and extra waistband room. An outside-the-waistband (OWB) belt loop or paddle holster spreads the pistol weight across your hip more comfortably, which serves well for range sessions, duty carry, or home defense when checking your property under reliable yard illumination.

Will a Glock 21 light holster fit Gen 3, Gen 4, and Gen 5 models?

Not always, so you must verify your specific frame generation against the manufacturer listing. Some holsters support Glock 20 and Glock 21 Gen 3, Gen 4, and Gen 5 models in the same shell, while others accommodate only specific generations due to differences in frame thickness and ambidextrous slide stop levers. Check that the product specifications explicitly state support for your exact Glock generation to prevent binding or loose retention.

Can you carry a Glock 21 in a light-bearing holster without the light attached?

No, you should never carry a Glock 21 in a light-bearing Kydex holster without its light attached. Rigid holsters built for weapon lights rely on the light body itself to create positive retention. If you detach the light, the pistol will rattle loosely inside the oversized channel, risking an accidental drop or letting the handgun shift out of position.

Does a holster for a Glock 21 with a light support slide-mounted red dot sights?

Only holsters designed with a dedicated optic cut will clear a red dot sight. Holsters such as the Warriorland MB3 package feature a factory optical cut along the top of the shell to accommodate slide-mounted optics. Standard Kydex models with full-height sweat guards will block an optic from seating, so inspect the top profile of the holster if you run a reflex sight on your slide.