# CMMG Endeavor MK3 - 6.5 Creedmoor Precision Rifle 20" Muzzle Brake

**Brand:** CMMG
**Category:** Semi-Automatic Rifles
**Caliber:** 6.5 Creedmoor

## Specifications

- **Caliber:** 6.5 Creedmoor
- **Barrel Length:** 20"
- **Capacity:** 20 rounds
- **Finish:** Finish Group: Blued/Black
- **Weight:** 142.4 oz
- **Overall Length:** 41.3"
- **UPC:** 810144729152
- **SKU:** UCEGJAikC

## Description

The CMMG Endeavor MK3 is a gas-operated semi-automatic rifle chambered in 6.5 Creedmoor, built around CMMG's MK3 platform for .308-pattern magazines and components. The 20-inch barrel and muzzle brake combination gives it a noticeable reach advantage at distance.

### Key Specifications
- **Model**: Endeavor MK3
- **Manufacturer**: CMMG
- **Caliber**: 6.5 Creedmoor
- **Barrel Length**: 20 inches
- **Capacity**: 20 rounds (Magpul PMAG)
- **Weight**: 8.9 lbs
- **Overall Length**: 41.3 inches
- **Finish Color**: Black (Cerakote)
- **Condition**: New in Box

### Features
- 416 stainless steel barrel with Salt Bath Nitride finish
- CMMG ZEROED Muzzle Brake reduces recoil and muzzle rise for faster follow-up shots
- Ambidextrous charging handle and safety selector
- Magpul MOE Rifle Stock and CMMG ZEROED Pistol Grip
- Adjustable gas block for tuning to different ammunition

## Frequently Asked Questions

**Q: What caliber is the Endeavor MK3?**

A: It is chambered in 6.5 Creedmoor.

**Q: What is the barrel length of the Endeavor MK3?**

A: The barrel is 20 inches long.

**Q: How many rounds does the Endeavor MK3 hold?**

A: It has a 20-round capacity, using a Magpul PMAG.

**Q: Who makes the Endeavor MK3?**

A: It is made by CMMG.

**Q: What type of firearm is the Endeavor MK3?**

A: It is a semi-automatic rifle built on CMMG's MK3 platform, which accepts .308-pattern magazines.

**Q: Does the Endeavor MK3 include a muzzle brake?**

A: Yes, it includes the CMMG ZEROED Muzzle Brake.

**Q: What finish does the Endeavor MK3 have?**

A: It has a black Cerakote finish on a 416 stainless steel barrel with a Salt Bath Nitride treatment.

**Q: Where can I buy the Endeavor MK3?**

A: Compare current vendor offers on this page.

## What Reviewers Say

*Quoted verbatim from YouTube reviews. Each link opens the video at the moment quoted.*

> This thing is so easy to hold the reticle steady for one the trimmer 3 reticle is just awesome in its own right.
>
> — [Texas Plinking](https://www.youtube.com/watch?v=pQOYN7TGUgg&t=573s)

> The whole thing just sits down I mean I'm shooting a 6-5 Creedmoor barrette when I shoot it the reticle stays right on target this setup man is so so sweet.
>
> — [Texas Plinking](https://www.youtube.com/watch?v=pQOYN7TGUgg&t=581s)

## What Customers Say

*AI-generated insights from customer reviews*

The CMMG Endeavor MK3 in 6.5 Creedmoor gets strong marks from precision-focused shooters. The 20-inch barrel paired with the muzzle brake is frequently cited as the combination that makes this rifle work well at distance. Users report tight groupings and manageable recoil that aids quick follow-ups.

Build quality comes up consistently: CMMG's materials and fit tend to inspire confidence. The ambidextrous controls are appreciated by left-handed shooters in particular.

The weight, 8.9 lbs unloaded, is the main area of concern. It is on the heavier end for a semi-auto in this caliber, which affects portability in the field. Aesthetic preferences around color options come up occasionally but are secondary to the performance considerations. For long-range target work and hunting where packing light is not the priority, user sentiment is broadly positive.

## Pricing

**4 offers available**

| Vendor | Price |
|--------|-------|
| Shootingsurplus Com | $1754.62 |
| Grabagun Com | $1759.99 |
| Classicfirearms Com | $1764.32 |
| Gritrsports Com | $1767.99 |

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*Data from [GunsNation](https://gunsnation.com)*