5.3" Extended Details Barrel Attachments | COD Black Ops Cold War | Call of Duty Attachment TypeBarrel Attachments | COD Black Ops Cold War | Call of Duty 5.3" Extended Stats - Pros and Cons: Bullet Velocity 40.00 m/s Weapon Blueprints That Equip 5.3" Extended: Cross Multiply Regal Sword Sweet & Salty 25" Reinforced Heavy 4.7" Tight Snub