We are not able to currently advise anodized lowers or frames, but For extra information on anodized lowers or frames please e-mail us at [e-mail safeguarded]. The bottom on the Ghost Gunner 3 is vacant. There is no ground plate so chips will slide every one of the way through. https://johnathantwuqm.bloguerosa.com/31924327/5-simple-statements-about-ghost-gunner-for-sale-explained