CMMG Endeavor 6mm ARC - New Long Range AR-15 Cartridge ~VIDEO ammoland.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from ammoland.com Daily Mail and Mail on Sunday newspapers.
The 6mm ARC is a tardy update to the M4 rifle, even if it were implemented right now, is already thirty years late. To convert existing M4s to this new round for that matter will require a.