Colorado Handgun Hunting Regulations

Last Reviewed: October 27, 2026 Handgun Hunting: Restricted

Hunting Overview

Colorado is widely considered the epicenter of western big game hunting, particularly for those with elk on the brain. The state boasts the largest elk population in the world, and for the handgun hunter, the high-country basins and dark timber of the Rockies offer an unparalleled challenge. Beyond elk, Colorado is a top-tier destination for mule deer and pronghorn, with the latter thriving on the expansive eastern plains. The state's management units (GMUs) are well-defined, and while many high-quality tags require years of preference points, over-the-counter (OTC) elk tags remain a staple for many hunters who want to experience the thrill of the bugle every fall.

The terrain is dominated by the Rocky Mountains, which bisect the state and create a wide range of hunting environments. Hunters may find themselves glassing from 12,000-foot ridges or navigating the deep, timbered canyons of the Western Slope where the wind and thermals play a critical role. The eastern third of the state is characterized by high plains and rolling grasslands, where pronghorn and mule deer roam the vast horizons. The climate is semi-arid and highly dependent on elevation; it is not uncommon to start a hunt in a T-shirt in the valley and end it in a blizzard on the peak. Success in Colorado often depends on a hunter's physical conditioning and their ability to handle the "thin air" of the high country.

Public land is a massive asset in Colorado, with over 23 million acres managed by the Forest Service and BLM. The White River National Forest is perhaps the most famous, housing massive elk herds across its diverse alpine and sub-alpine habitats. To the southwest, the Gunnison National Forest offers rugged, high-elevation terrain that is a stronghold for both elk and mule deer, providing some of the best habitat in the state. For those seeking a different experience, the Pawnee National Grassland on the eastern plains provides wide-open spaces for pronghorn hunting under the vast Colorado sky, where long-range glassing is the name of the game.

Terrain

Colorado is defined by the towering peaks and deep timber of the Rocky Mountains, high-altitude mesas, and the expansive shortgrass prairies of the eastern plains.

Top Game Species

Elk, mule deer, pronghorn, black bear, moose

Regulatory Data Matrix — Colorado

CheckpointDetailsStatus
Big Game Legality Deer, elk, pronghorn, bear, mountain lion, moose, bighorn sheep, mountain goat (handguns meeting caliber/energy criteria are a legal method of take) Restricted
Minimum Caliber .24 caliber (6mm) or larger expanding bullet with manufacturer-rated impact energy of at least 550 ft-lbs at 50 yards (except mountain lion); mountain lion: centerfire handgun with bullets of at least 45 grains and at least 400 ft-lbs at the muzzle Documented
Energy Floor 550 ft-lbs at 50 yards; 400 ft-lbs at the muzzle for mountain lion Documented
Minimum Barrel Length 4 inches Documented
Permitted Action Types Any legal handgun Documented
Optic Regulations Not specified Documented
Archery Season Sidearm Not addressed Documented

Additional Notes

2 CCR 406-2 §203 (Manner of Take) in the Colorado Big Game Brochure: handguns must have a barrel at least 4 inches long and use an expanding bullet of at least .24 caliber rated by the manufacturer to produce at least 550 ft-lbs of impact energy at 50 yards; shoulder stocks or similar attachments are prohibited. For mountain lion, a centerfire handgun using bullets of at least 45 grains producing at least 400 ft-lbs at the muzzle is legal. Handguns are generally used during rifle/handgun seasons; muzzleloading handguns must meet muzzleloader rules. Check the current Big Game Brochure for unit- and season-specific restrictions.

Disclaimer: HandgunHunting.org is a hobbyist website run by passionate hunters. The information on this page is provided for general reference only and does not constitute legal advice. Always verify current regulations directly with your state's official wildlife agency before hunting.

Official State Resource

Official Source

Colorado Parks and Wildlife (CPW)

✓ Season Verified October 27, 2026

Colorado Handgun Hunting FAQ

What handgun is legal for Colorado big game?

A handgun with a barrel at least 4 inches long using an expanding bullet of at least .24 caliber rated to produce at least 550 ft-lbs of impact energy at 50 yards.

Can I put a shoulder stock on my hunting handgun?

No. Shoulder stocks or similar shoulder-mounted attachments are prohibited on handguns used for big game.

What are the handgun rules for mountain lion?

A centerfire handgun firing bullets of at least 45 grains producing at least 400 ft-lbs of energy at the muzzle is legal for mountain lion.

Do I need a special license to hunt with a handgun?

You need a standard Colorado big game license for the species/unit/season; handguns are a legal method of take during rifle seasons.

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