Posted 10 Apr 2016 RFB stands for Rifle, Forward-ejecting Bullpup. Why forward-ejecting? Because it allows the RFB to be the first truly ambidextrous 7.62 NATO Bullpup ever developed. The, dual-extractor system maintains control of the case from the moment it leaves the mag Order here https://www.hkspecialiststore.com/product-detail?productId=373&siteSearch=rfb&sortBy=sequence Greer, South Carolina, United States Share this post Link to post Share on other sites