CMMG Adds the 6.5 Grendel to the MkW ANVIL Line

In the world of modern cartridges, the 6.5 Creedmoor seems to be getting a lot of attention lately. However, CMMG is showing a little love for the “other” .264-caliber cartridge: the 6.5 Grendel. The company announced that it was expanding its MkW ANVIL line to include several new semi-automatic rifles and pistols chamber for the 6.5 Grendel.

The MkW ANVIL line is less than a year old.  It was originally designed to chamber the .458 SOCOM cartridge and is a hybrid design. CMMG calls this its midsize AR platform. The guns use AR-10 sized lowers with magazine wells that are designed to accept standard AR-15 magazines. The uppers are shortened by 0.75” as compared to a standard AR-10 upper.

MkW ANVIL rifles use modified AR-10 sized bolts for increased durability. Called the POWERBOLT, the bolt is a unique CMMG design. According to the company, the standard AR sized bolt would need material milled from it to provide optimal reliability with the 6.5 Grendel. With the AR 10 sized power bolt, CMMG is able to design a system that is reliable yet has enough meat on it to be extremely durable.

The new MkW ANVIL guns are offered in a variety of configurations that range in price from $1699.95 to $1999.95. Additionally, the company will offer upper receiver groups to customers who already own an MkW ANVIL chambered in .458 SOCOM.  The upper groups will range in price from $1049.95 to $1099.95.

Factory configurations:

CMMG MkW ANVIL T:

Caliber:  6.5 Grendel
Barrel:  16.1″, 1:8 Twist, Medium Taper, 416SS SBN
Muzzle:  CMMG A2 Comp, Threaded 5/8-24
Hand Guard:  CMMG RKM15 KeyMod
Upper Receiver:  Billet 7075-T6 AL Mid-Size
Lower Receiver:  Billet 7075-T6 AL Mid-Size
Trigger:  Single Stage Mil-Spec Style Trigger
Furniture:  A2 Pistol Grip, M4 butt stock with 6-pos mil-spec receiver extension
Weight: 7.5 lbs (Unloaded)
Length: 33.5″ (Stock Collapsed)
MSRP:  $1,699.95

CMMG MkW ANVIL XFT:

Caliber:  6.5 Grendel
Barrel:  16.1″, 1:8 Twist, Medium Taper, 416SS SBN
Muzzle:  CMMG SV muzzle brake, Threaded 5/8-24
Hand Guard:  CMMG RKM15 KeyMod
Upper Receiver:  Billet 7075-T6 AL Mid-Size
Lower Receiver:  Billet 7075-T6 AL Mid-Size
Trigger:  Single Stage Mil-Spec Style Trigger
Furniture:  Magpul MOE Pistol Grip & CTR Carbine Stock with 6-Position Receiver Extension
Weight: 7.7 lbs (Unloaded)
Length: 33.5″ (Stock Collapsed)
MSRP:  $1,799.95

CMMG MkW ANVIL XFT2:

Caliber:  6.5 Grendel
Barrel:  16.1″, 1:8 Twist, Medium Taper, 416SS SBN
Muzzle:  CMMG SV muzzle brake, Threaded 5/8-24
Hand Guard:  CMMG RKM15 KeyMod
Upper Receiver:  Billet 7075-T6 AL Mid-Size
Lower Receiver:  Billet 7075-T6 AL Mid-Size
Trigger:  Geissele SSA 2-Stage Trigger
Furniture:  Magpul MOE Pistol Grip & CTR Carbine Stock with 6-Position Receiver Extension
Weight: 7.7 lbs (Unloaded)
Length: 33.5″ (Stock Collapsed)
MSRP:  $1,999.95

CMMG MkW ANVIL K Pistol

Caliber:  6.5 Grendel
Barrel:  12.5″, 1:8 Twist, Medium Taper, 416SS SBN
Muzzle:  CMMG A2 Comp, Threaded 5/8-24
Hand Guard:  CMMG RKM11 KeyMod
Upper Receiver:  Billet 7075-T6 AL Mid-Size
Lower Receiver:  Billet 7075-T6 AL Mid-Size
Trigger:  CMMG Single Stage
Furniture:  Magpul MOE Pistol Grip, CMMG Pistol Receiver Extension
Weight: 7.1 lbs (Unloaded)
Length: 29″ (Stock Collapsed)
MSRP:  $1,699.95

CMMG MkW ANVIL PSB Pistol

Caliber:  6.5 Grendel
Barrel:  12.5″, 1:8 Twist, Medium Taper, 416SS SBN
Muzzle:  CMMG A2 Comp, Threaded 5/8-24
Hand Guard:  CMMG RKM11 KeyMod
Upper Receiver:  Billet 7075-T6 AL Mid-Size
Lower Receiver:  Billet 7075-T6 AL Mid-Size
Trigger:  CMMG Single Stage
Furniture:  Magpul MOE Pistol Grip, KAK Shockwave Brace
Weight: 7.5 lbs (Unloaded)
Length: 29″ (Stock Collapsed)
MSRP:  $1,749.95

Upper Group, T, 6.5 Grendel, SBN

Barrel: 16.1″ 1:8 Twist, 6.5 Grendel, Medium Taper 416SS SBN Barrel
Muzzle: CMMG A2 Comp, Threaded 5/8 – 24
Hand Guard: CMMG RKM15
Receivers: Billet 7075-T6 AL, Mid-Size ANVIL Platform
MSRP: $ 1049.95

Upper Group, XFT, 6.5 Grendel, SBN

Barrel: 16.1″ 1:8 Twist, 6.5 Grendel, Medium Taper 416SS SBN Barrel
Muzzle: CMMG SV Brake, Threaded 5/8 – 24
Hand Guard: CMMG RKM15
Receivers: Billet 7075-T6 AL, Mid-Size ANVIL Platform
MSRP: $1099.95

Upper Group, K, 6.5 Grendel, SBN

Barrel: 12.5″ 1:8 Twist, 6.5 Grendel, Medium Taper 416SS SBN Barrel
Muzzle: CMMG A2 Comp, Threaded 5/8 – 24
Hand Guard: CMMG RKM11
Receivers: Billet 7075-T6 AL, Mid-Size ANVIL Platform
MSRP: $1,049.95





Richard Johnson

An advocate of gun proliferation zones, Richard is a long time shooter, former cop and internet entrepreneur. Among the many places he calls home is http://www.gunsholstersandgear.com/.


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  • Mr._Exterminatus

    Anyone have any experience with CMMG? I’m wondering how reliable they are.

    • Just Say’n

      Personally I only have experience with their lower kits, which are high-quality and have excellent color-coded packaging and great on-line assembly tutorials.
      They’ve got a good reputation (otherwise you would’ve received an earful buy now….)

  • Wolfgar

    CMMG produces good products. The Anvil utilizes the same “bullet proof” bolt as their mutant in 7.62X39. If CMMG could get Magpul to produce a true 30 round 6.5 Grendel mag with a little more room for longer bullet like they did for the LWRCI six 8 they would have the perfect magazine, rifle, caliber for my needs. The E-Lander 24 round mag has functioned flawlessly for me in any case and I’m looking forward to shooting this rifle.

    • civilianaf

      Can you advisewhat parts CMMG makes in house besides their uppers and lowers?

  • Joby

    I think for the price range it might be a better bet to go with an entry Precision Firearms upper. You’ll probably get better groups and it will at least fit on a standard lower. I’m 99% certain just about anybody who would spend about 2 grand on a rifle has an AR laying around somewhere.

    • Wolfgar

      Precision firearms makes very accurate and top end 6.5 Grendel products, one of the best. I’m happy to see CMMG make an intermediate size rifle better suited for high volume shooters such as myself where the bolt is stronger by design. It is great to see the market make rifles for all levels of need,” want LOL” for the consumer.

      • Timmah_timmah

        Ok enjoy this heavy pig if you want… I’ll enjoy my standard AR15s in grendel – they handle volume just fine.

        • Wolfgar

          I own and enjoy many Grendels in the AR-15 platform too. Your comment about Grendel bolts breaking being a myth is either naive or blatantly dishonest. Just go to the Grendel forum and do a little research and you will find your answers to broken Grendel bolts if you doubt me. Yes, I will enjoy my “heavy pig” thank you very much!

  • Just Say’n

    I guess I don’t get it. Why a 6.5 Grendel with an AR-10 receiver when the lighter, smaller, less expensive AR-15 receiver does the job just fine thankyouverymuch?

    • ostiariusalpha

      The Grendel is fun and useful for the typical shooter that gets their ammo strictly from vendors, but it truly comes into its own as a handloaders project. The smaller trunnion on the AR-15 puts an unnecessary pressure limit on the cartridge that a larger trunnion, such as the ANVIL has, liberates you from.

      • Just Say’n

        Oh, good to know- thanks (yeah, I haven’t started reloading for my Grendel, just shoot Hornaday A-max and SSTs thorugh it, some Wolf for fun).

      • Timmah_timmah

        I call bullshit. There are literally thousands of grendel rifles and bolts in use. The rumors of failures are myth.

        • ostiariusalpha

          The trunnion issue is almost entirely separate from the bolt lug issues. Even with the good AA bolt with a proper .136″ bolt face depth, the trunnion remains as a limiting factor on how much pressure you can safely reach in the Grendel without getting unstable velocities; or worse if you eventually start to egg out the chamber walls, stuck cases and potential case head separation.

  • Frank

    I’ve heard of the 7.62×39 AR bolt breakages but has there been any documented cases of a 6.5 breakage?

    • Wolfgar

      Bill Alexander did his homework when he made the Grendel bolt, they are very good. I have read of a few breaking but most broken bolts were bolts manufactured by other companies. In many of the failed bolts the ammo or assembled rifles were suspect. I have personally never broken any Alexander Arms Grendel bolts in my rifles.I use the AA hard use bolts in my rifles. I shoot factory ammo, my carefully loaded ammo is kept under max pressures, and I don’t shoot them hard like my 5.56 rifles.