A stun grenade, also known as a flash grenade, flashbang, thunderflash, or sound bomb, is a non-lethal explosive device used to temporarily disorient an enemy's senses. From Wikipedia
Detailed breakdowns reveal optimal attachments, secondary weapons, and perks for MW3's KATT-AMR, FR 5.56, and DG-58, aiming to enhance damage output, stability, and handling for each weapon.