6 Rnd Tube Details Magazine Attachments | COD Black Ops Cold War | Call of Duty Attachment TypeMagazine Attachments | COD Black Ops Cold War | Call of Duty 6 Rnd Tube Stats - Pros and Cons: Magazine Ammo Capacity 20.00 Max Starting Ammo 20.00 Ammo Capacity 20.00 Weapon Blueprints That Equip 6 Rnd Tube: Albino Snake Battle Worn Blue Groove Chestnut Chimney Sweeper Gilded Rose Headache Hot Mic Last Stop Nightfall GRU Mag Clamp 9 Rnd Tube