# CMMG Resolute MK4 Tactical Rifle - 6.5 Grendel, 16.1" Barrel

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

## Specifications

- **Caliber:** 6.5 Grendel
- **Barrel Length:** 16.1"
- **Capacity:** 10 rounds
- **Weight:** 102.4 oz
- **UPC:** 810144725475
- **SKU:** UCEGJAhmt

## Description

The CMMG Resolute MK4 is a direct-impingement AR-platform rifle chambered in 6.5 Grendel. At 6.4 lbs unloaded, it's light enough to carry in the field without sacrificing the longer effective range that 6.5 Grendel offers over .223. The 16.1-inch barrel is 416 stainless steel with a Cerakote finish and a 1:8 twist rate, well-matched to the heavier bullets this caliber favors. Threading is 5/8 x 24 with a CMMG ZEROED muzzle brake installed, so swapping to a suppressor is straightforward.

### Key Specifications
- **Model:** Resolute MK4
- **Manufacturer:** CMMG
- **Caliber:** 6.5 Grendel
- **Barrel Length:** 16.1 inches
- **Capacity:** 10 rounds
- **Weight:** 6.4 lbs (unloaded)
- **Condition:** New in Box
- **Finish Color:** Black

The CMMG ZEROED charging handle and ambidextrous safety selector work equally well for left- and right-handed shooters. The direct-impingement operating system keeps the weight down and simplifies the gas system compared to piston alternatives. 6.5 Grendel magazines top out at 10 rounds in the standard configuration shipped with this rifle.

## Frequently Asked Questions

**Q: What caliber is the CMMG Resolute MK4 in 6.5 Grendel?**

A: This Resolute MK4 is chambered in 6.5 Grendel.

**Q: Who makes the Resolute MK4?**

A: The Resolute MK4 is made by CMMG.

**Q: What is the barrel length of this Resolute MK4?**

A: It has a 16.1-inch barrel.

**Q: How many rounds does this Resolute MK4 hold?**

A: It has a 10-round capacity.

**Q: What type of firearm is the Resolute MK4?**

A: It is a semi-automatic, direct-impingement AR-platform rifle.

**Q: Is the Resolute MK4 threaded?**

A: Yes, the barrel is threaded 5/8 x 24 and comes with a CMMG ZEROED muzzle brake installed.

**Q: Where can I buy the CMMG Resolute MK4 in 6.5 Grendel?**

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.*

> At a hundred yards any time you're under three quarter MOA with an AR that's a really good number not a whole lot of guns or guys can hold that consistently.
>
> — [Ultimate Reloader](https://www.youtube.com/watch?v=J51eSO7p5tI&t=884s)

> Every 810 20 rounds or so I would have an extraction problem spent shell casings stove-piped against the bolt in the ejection port and then a live round stripped off of the magazine.
>
> — [Ultimate Reloader](https://www.youtube.com/watch?v=J51eSO7p5tI&t=773s)

> Confirmed with CMM G for this rifle there should only be one I know some guys do run to I put it back together with one o ring behind the extractor and it's been running 100% since.
>
> — [Ultimate Reloader](https://www.youtube.com/watch?v=J51eSO7p5tI&t=805s)

> If you had to pick one AR you could do a lot worse than this so it's been a lot of fun and I've really been glad that I got this particular ride.
>
> — [Ultimate Reloader](https://www.youtube.com/watch?v=J51eSO7p5tI&t=1084s)

## What Customers Say

*AI-generated insights from customer reviews*

Owners of the CMMG Resolute MK4 in 6.5 Grendel highlight accuracy at distance as the main reason to choose this platform. The 6.5 Grendel cartridge's ballistics get credit for most of that, but users note that the stainless barrel and 1:8 twist live up to the caliber's potential. Build quality reviews are consistently positive. CMMG's fit and finish comes up often as a step above budget AR makers. The main friction points in discussions are price and ammo availability: 6.5 Grendel costs more per round and is harder to find at local stores than .223 or .308, which matters for high-volume shooters. Those who accept that tradeoff tend to be satisfied, especially hunters targeting medium to larger game at longer ranges where the cartridge earns its keep.

## Pricing

**4 offers available**

| Vendor | Price |
|--------|-------|
| Grabagun Com | $1419.99 |
| Shootingsurplus Com | $1446.62 |
| Gritrsports Com | $1451.99 |
| Buds Gun Shop | $1454.99 |

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