Barrett 13355 M82A1 10rd 50 BMG Black Metal
https://www.tandktactical.com/shop/816715010957-barrett-13355-m82a1-10rd-50-bmg-black-metal-1396
https://www.tandktactical.com/web/image/product.template/1396/image_1920?unique=03e345c
This replacement or spare magazine is compatible with your Barrett M82A1.
