CMMG Endeavor 200 MK4 Upper 6mm ARC 20 Barrel

Endeavor 200 MK4 Upper Features The ENDEAVOR line features a 20-inch barrel so that you can easily pair the upper receiver with your existing AR15 lower and squeeze out every drop of ballistic performance from Hornady s 6mm ARC caliber. Endeavor 200 MK4 Upper Specifications Caliber: 6mm ARC Model: Endeavor 200 Series: MK4 Barrel Length Range: 20 to 20.99 Sights: None Optic Ready Muzzle: CMMG SV Brake Firearm Fit: AR-15 Handguards: 15 CMMG RML M-LOK Receiver Finish: Black Hard Coat Anodized Receiver Material: 7075 T6 Aluminum Thread Pattern: 5 / 8-24 tpi Twist: 1:7.50 Weight: 5.50 lbs Barrel Description: Medium Taper Barrel Finish: Black Nitride Barrel Material: 416R Stainless Steel Barrel Length: 20