CMMG 55DA503 1/2"x28 Nitride Black
http://www.tandktactical.com/shop/810144729954-cmmg-55da503-1-2-x28-nitride-black-47157
http://www.tandktactical.com/web/image/product.template/47157/image_1920?unique=242e364
Made to attach to firearms with a 1/2-28 muzzle thread, DEFCAN direct thread mounts are compatible with any 1.375-24 HUB pattern threaded suppressors.
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