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Red Dot Sight Holsters for
Glock 21 Gen4

Showing 8 of 8 products

Check all Glock 21 - Gen4
Holster options

Our offer includes 8 designs of Glock  21 - Gen4  Red Dot Sight holster with key features such as quick and easy draw and re-holstering. Wide range of carry positions and carry styles allow you to browse through many holster models with great retention and a covered trigger guard, either open top holsters or holsters with a thumb break. Our Glock  21 - Gen4 holsters are designed to minimise gun print so your carry is only known to you, their slim profile and premium stitching are a key feature. Other than that, we have a large range of on-duty or off-duty holsters for your daily carry.

Our Glock  21 - Gen4   holsters are available in many varieties, and carry styles covering everything a gun owner needs, including SALE, IWB, OWB, Ankle, Appendix, Concealed Carry, Cross Draw, Drop Leg, Duty, Light & Laser Bearing, Magazine, Paddle, Red Dot Sight, Shoulder, Small Of Back, Other (Molle, Pocket, ...) holster designs.

Glock  21 - Gen4  Red Dot Sight holsters are custom made for this gun model for a perfect fit, smooth draw and re-holstering and allows you to carry your gun in comfortable and safe way. Browse our whole selection of Glock Holsters.

Old world craftsmanship
Old-School Craftmanship
Monogram embossing
Monogram Embossing
5 year warranty
5 Year Warranty
Glock 21 - Gen4 Handgun Glock 21 - Gen4 Handgun Glock 21 - Gen4 Handgun

About Glock 21 - Gen4

Glock Ges.m.b.H., trademarked as Glock is one of the most famous and successful firearm producer, well known all over the world.  Engineer Gaston Glock, company's founder who had no experience with firearms manufacture or design, became one of the most successful firearms designer of all times. Glock had extensive experience in advanced synthetic polymers, knowledge of which was very important in the company's design of the first commercially successful line of polymer frame pistols.

The Glock 21 Gen 4 is a product from the Gen 4 series that was introduced in 2010. The updates of the new generation centered on ergonomics and the spring assembly. The parts of some handguns can be interchanged between each other. The Grip on the Glock 21 Gen-4 as well on other from this generation is smaller, the magazine releases are reversible for left hand users. The trigger mechanism on the G21 Gen 4, as well as other models, has been also modified for it to fit in the smaller grip space and also the slide and barrel shelf have been resized. The standard trigger housing pin was removed and replaced by a longer cross pin in order to mount the backstrap that increased the trigger distance by 2 mm or 4 mm (0.079 in or 0.16 in). With the backstrap installed, the grip size is identical to the other Gen pistols.

Gun Facts

  • Gun type: Pistol
  • Barrel Length: 4.61"
  • Caliber: 45
  • Stack: Double stack
  • Width: 1.34"
  • Height: 5.51"
  • Length: 8.07"
Crafting a perfect Glock 21 - Gen4 holster Crafting a perfect Glock 21 - Gen4 holster Crafting a perfect Glock 21 - Gen4 holster

What Makes a Great Red Dot Sight Glock 21 - Gen4 Holster

A great Red Dot Sight holster is always designed specifically for your Glock 21 - Gen4 with a red dot optics attached. This means the holster has to come with a cut out in , which allows you to keep your gun optics attached to your pistol at all times. These Glock 21 - Gen4 red dot holsters are a great carry choice if you prefer to carry your Glock 21 - Gen4 equipped with a red dot, reflex, or RMR sight. Of course, a  holster designed this way will let you carry your Glock 21 - Gen4 with a perfect fit even if you decide to dismount the red dot optics from your pistol's slide.
The perfet fit of your new Glock 21 - Gen4 RDS holster is achieved thanks to the molding techniques we use. Your new holster is always molded on the exact replica of your pistol with the optics attached. If your Glock 21 - Gen4 is equipped with a red dot or reflex sight, these optics ready holsters are your best choice.

Accessories For Your Red Dot Sight Glock 21 - Gen4 Holster

Choose the right accessories below that will enhance your carry. Don't forget that a proper magazine pouch, a belt or a concealed carry bag are always good choices.

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