https://brethrenarms.com/shop/ar15-magazine-conversion/
Bretheren arms also sells one out of the box that is 300BLK. I don't have any experience with their stuff.
https://brethrenarms.com/shop/b300/
https://brethrenarms.com/shop/ar15-magazine-conversion/
Bretheren arms also sells one out of the box that is 300BLK. I don't have any experience with their stuff.
https://brethrenarms.com/shop/b300/
Last edited by SCLBlack; 07-25-18 at 19:44.
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