Posted 31 Jan 2016 (edited) Surefire used 1 brakes and five flash hiders one FH threaded 5/8-24 the rest 1/2-28 will fit Socom series cans came off HK 556/416 $200 shipped for all or $35 each shipped Two HK 556/416 10" gas blocks $75 each or $120 for both shipped one has the sling circles clipped Edited 2 Feb 2016 by arch stanton Racine, Wisconsin, United States Share this post Link to post Share on other sites