CMMG Endeavor 200 MK4, 6mm ARC

Currently sold out.

The CMMG Endeavor is a carbine based on the AR15 and designed as a Long Range semi-automatic - with high configurability and modularity for the corresponding application. The Endeavor features a 20" barrel (other barrel lengths depending on caliber) and a free-floating M-LOK handguard. The weapon is designed as a base weapon and offers the shooter the opportunity to personalize it according to their wishes and adapt it with accessories. Made from high-strength "aircraft grade" aluminum, the CMMG Endeavor MK4 combines the classic AR15 design with modern manufacturing techniques and features. The Endeavor is delivered with a fixed Magpul MOE Rifle Stock and an A2 rifle buffer tube.

The 6mm ARC caliber is a relatively new cartridge, introduced to the market in 2020 and developed at the request of a department of the DOD (U.S. Department of Defense). The goal of this "Advanced Rifle Cartridge" was to fire a powerful 6mm (.243) cartridge from the AR15 platform, rather than from the larger and heavier AR10 platform - thus the fast newcomer offers nearly the same ballistic data as the proven .243 Winchester or the 6mm Creedmoor. But with the shorter barrels typical of an AR15, the 6mm ARC has the advantage, as it was specifically designed for that purpose. The caliber is equally suitable for hunting or precision shooting, and the moderate recoil and precision-oriented, approximately 3.2kg heavy, CMMG Endeavor MK4 are a promising combination.

Please note:
The 6mm ARC cartridge uses its own magazines! Standard AR15 magazines for the .223 do NOT fit. Since the new cartridge is similar in dimensions to the 6.5mm Grendel (e.g., both calibers use the same bolt head), 6.5mm Grendel magazines can be used. Although it achieves more than 2,000J at 100m, the cartridge is NOT suitable for large game due to its small caliber.

Product details:

CMMG Endeavor

6mm ARC


20" barrel length

Muzzle thread: 5/8"x24
with muzzle brake
Twist: 1:7"


M-LOK handguard

with Picatinny rail at 12 o'clock


Upper Receiver: 6061 T6 aluminum, machined
Lower Receiver: 7075 T6 aluminum, forged

Model:
CMMG Endeavor 200 MK4


Caliber:
6mm ARC


Barrel length:
20" (50.8 cm)


Twist:
1:7"


Magazine capacity:
10 rounds


Sights:
none, Picatinny rail at 12 o'clock


Application:
Hunting & Sport


Weight:
approx. 3,200 g


Overall length (collapsed / extended):
96 cm

CMMG® was founded in 2002 when John, Jeff, Gretchen, and Stephanie Overstreet made the decision to develop a high-quality AR rifle that anyone could afford. Since then, it has only gotten better. CMMG is constantly looking for new ways to improve products and processes. All firearms and firearm parts are manufactured in the United States from the best available materials. CMMG guarantees that its products are free from material or workmanship defects throughout their lifetime.

Sale only to holders of a purchase permit.