The Treeline ( neon green, black, green and tan ) Paracord Wrapped BearArms Bullet Bracelet™Paired with .40 Caliber Shell Casings. The Best and Original Bullet Casing Jewelry on the Internet. A perfect bracelet for men and women. Show your support for the 2nd Amendment and our Military Armed Forces. Available in Brass or Nickel .40cal Casings.