CMMG Unveils Mk4 V Series

by
posted on July 29, 2014
** When you buy products through the links on our site, we may earn a commission that supports NRA's mission to protect, preserve and defend the Second Amendment. **
http___wwwamericanriflemanorg_videos_gotw-cmmg-mk4-rce.jpg

Whether it’s knocking down a long-range shot or tracking a moving target, speed and accuracy remain a shooter's main goals. To meet these challenges, CMMG has introduced the Mk4 V and Mk4 V2, both chambered in 5.56x45mm.

Both the Mk4 V and Mk4 V2 are equipped with a 24-inch fluted 416 stainless steel barrel designed to extract the utmost performance out of each round. The fluting on the barrel reduces the weight and also allows the barrel to dissipate heat more rapidly, thus cooling down faster.

The rifle also features CMMG’s RKM14 KeyMod hand guard, which offers three primary advantages:

  • Reduced Weight – Material is removed from the hand guard where the KeyMod slots are located making it lighter than traditional quad-rail hand guards.
  • Slimmer Profile – The absence of rails from the sides of the hand guard create a thinner profile that is easier for the average shooter to wrap their hand around and grip.
  • Easy Accessory Attachment – The KeyMod slots are found at the 3, 6 and 9 o’clock positions on the hand guard. Accessories that are KeyMod compatible can be attached directly to the slots, whereas accessories that are not KeyMod compatible can easily be attached by using one of CMMG’s 5-slot accessory rails.

A standard 1913 Picatinny rail runs atop the rifle from the charging handle to the front of the RKM14 hand guard for mounting optics.

The Mk4 V2 comes standard with a Geissele Automatics SSA two-stage trigger pre-installed. The Mk4 V2 comes with standard with a Magpul MOE pistol grip and buttstock and one 30-round Magpul PMAG. The Mk4 V2 is available now and the MSRP is $1,499.95.

The Mk4 V, is a less-expensive option and comes with CMMG’s renowned single-stage mil-spec trigger, an A2 pistol grip and an A1 butt stock. MSRP for the Mk4 V is $1,249.95.

CMMG Mk4 V2 Technical Specifications:Caliber:  5.56x45 mm
Barrel:  24" fluted medium contour, 1:8” twist
Hand Guard:  CMMG RKM14 KeyMod hand guard
Receiver:  Forged 7075-T6 AL
Trigger:  Geissele Automatics SSA two-stage
Furniture:  Magpul MOE Pistol Grip and Buttstock
Weight: 7.5 lbs unloaded
Length: 41.5”
Magazine: 30-round PMAG
MSRP:  $1,499.95

CMMG Mk4 V Technical Specifications:Caliber:  5.56x45 mm
Barrel:  24" fluted medium contour, 1:8” twist
Hand Guard:  CMMG RKM14 KeyMod hand guard
Receiver:  Forged 7075-T6 AL
Trigger:  Single Stage Mil Spec Trigger
Furniture:  A2 Pistol Grip and A1 Buttstock
Weight: 7.5 lbs unloaded
Length: 41.5”
Magazine: 30-round PMAG
MSRP:  $1,249.95

For more information, visit CMMG.com.

Latest

LCP Max Magpul 01
LCP Max Magpul 01

The LCP Meets Magpul: Ruger's LCP Max with Magpul's EHG

Over the years, Ruger has enhanced its LCP with the introduction of the LCP II and LCP Max. New for 2026, Ruger is offering a new version of the LCP Max with the addition of a Magpul Enhanced Handgun Grip.

Review: 945 Industries Q.A.P. Series Off-Body Carry Bag

Off-body carry can be somewhat controversial, but choosing the right gear can go a long way toward successful carry. One good option is the Q.A.P. Series of bags from 945 Industries.

At 75, CCI is Offering Even More

In 2026, CCI Ammunition—formally Cascade Cartridge, Inc.—marks its 75th anniversary with a fitting tribute to innovation and American ingenuity.

Gun of the Week: Powder River Precision Rubicon Icon

Powder River Precision has taken the basic Ruger 10/22 rifle concept and enhanced it with its Rubicon Icon design.

The Armed Citizen® May 1, 2026

Read today's "The Armed Citizen" entry for real stories of law-abiding citizens, past and present, who used their firearms to save lives.

Training & Gear for Active Shooter Response

For armed civilians, developing an active-shooter response plan isn’t about playing hero. It’s about having the right gear and the skills to decisively use them if violence finds you.

Interests



Get the best of American Rifleman delivered to your inbox.