CMMG Endeavor 200, Complete Upper Receiver, 6MM ARC, 20" Barrel, Threaded 5/8-24, SV Brake, Black Color, Anodized Finish, RML15 Handguard with M-LOK, No Magazine 60B8667

CMMG's ENDEAVOR line of upper receiver groups are now available in Hornady's new 6mm ARC (Advanced Rifle Cartridge). Designed for superior long-range accuracy" 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 this exciting new caliber.