CMMG Endeavor 300 MK4 Rifle 6mm ARC 20" Barrel 10 Round Sniper Gray Cerakote Magpul PRS Stock

For shooters and hunters who need to reach out to extended ranges, CMMG's Endeavor is built to maximize long-distance precision. The Endeavor 300 model features a Magpul MOE stock, 20" 416 stainless steel barrel with black nitrided finish and SV muzzle break, and 7075-T6 aluminum upper and lower receiver.



Brand CMMG

Category Tactical Rifles

Gun Platform AR-Style

Caliber 6mm ARC

Model Endeavor 300

Series MK4

Stock Finish Sniper Gray

Action Semi-Auto

Sights None, Optic Ready

Capacity 10+1

Muzzle CMMG SV Brake

Magazine Type AR-15

Grips Black Magpul MOE

Hand Right

Handguards M-LOK Free-Float

Max Capacity 10

Oal 40.50"

Receiver Finish Sniper Gray Cerakote

Receiver Material 7075-T6 Aluminum

Stock Description Adjustable Magpul PRS

Stock Finish Group Gray

Stock Material Synthetic

Thread Pattern 5 / 8"-24 tpi

Trigger Geissele SSA Two-Stage

Twist 1:7.50"

Weight 9.20 lbs

Barrel Description 416 Stainless Steel

Barrel Finish Black Nitride

Barrel Length 20"

Enter your ZIP code for an exact shipping cost on this item. Hazardous-materials fees, where they apply, are included in the total shown.

Read our full shipping policy

Firearms must ship to a licensed dealer (FFL), who completes the transfer and the required background check when you collect the item.

How FFL transfers work · Terms of sale · Product and legal restrictions