Shop › Ring SIG 357 Image 1 of 3 Image 2 of 3 Image 3 of 3 Ring SIG 357 $15.00 Handcrafted ring made using a SIG 357 spent bullet casing. Stainless steel band. Adjustable ring. Original primer. Add to Cart Added! Handcrafted ring made using a SIG 357 spent bullet casing. Stainless steel band. Adjustable ring. Original primer.