We're close to launch on the .625" sizes many of you have been asking about. Pics of .625" Gas Controls and upper assemblies will be on the site in the next week and sales should begin mid month. These came out great and are sooooo nice on those lightweight upper builds. The first of which sailed through a Greenline Tactical Nightfighter Course in March with flying colors & no issues at all. Be sure to sign up for the waitlist if you haven't already & you'll get notified as soon as the .625" models hit the website.