Double Tap R1 Bullet Headphones by CoolShitiBuy The Double Tap R1 Bullet Headphones have an eye-catching design and a durable built made using real 40 caliber, 22 caliber and 32 caliber ammo casings. The Bullet headphones are equipped with 10mm dynamic drivers to supply crisp clear sound... 2 2,339 $65.00 via Double Tap Audio Facebook Pinterest Save2 Check it out