To main content

Red Dot Sight Holsters for
Glock 21 C

Showing 5 of 5 products

Check all Glock 21 C
Holster options

Our offer includes 5 designs of Glock  21 C  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 C 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 C   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 C  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 C Handgun Glock 21 C Handgun Glock 21 C Handgun

About Glock 21 C

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 C, is very similar in size to previous model, chambered with 10mm ammunition. In fact, the frames appear to be identical. Test specimen of a prototype Glock 21 C has an overall length of 8.27 inches and the barrel length about 4.6 inches..  The weight of the Glock 21 Cunloaded is 29.5 ounces. Almost 85 percent of this mass is accounted by the steel components. As the other models of the Glock series, there are only 35 parts including the magazine. The G21 C is a short recoil operated, with the barrel that is locked to the slide by a single lug. During the recoil stroke the barrel moves immediately rearward about 3mm and until the bullet leaves the barrel it pressures drop to a safe level. The barrel on the G 21 C then drops downward and separating from the slide and terminating any further motion. The slide is continued rearward movement and counter-recoil cycle are those from the Browning system. It’s a striker-fired, hammerless model with the Glock's trigger and firing pin mechanisms that are quite progressive.

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 C holster Crafting a perfect Glock 21 C holster Crafting a perfect Glock 21 C holster

What Makes a Great Red Dot Sight Glock 21 C Holster

Red dot sight holsters are designed specifically for your Glock 21 C with a RDS attached. These Glock 21 C RDS holsters are a great carry choice if you prefer to carry your Glock 21 C equipped with red dot, reflex, or RMR sights. All of these red dot holsters are custom molded on the exact replica of your Glock 21 C and they allow ample room for your optical attachment. If your Glock 21 C 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 C 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.

Popular Guides

Your Personal Holsters Collection

Browse holsters by gun model

Create your unique custom holster design in our 

Custom Shop

Become a part of the design of your own custom made holster from scratch with the help of our master craftsman.