Replied by LebbenB on topic New Armalite AR-10 - Bolt doesnt lockback?
That 1/2 to 5/8 you're short probably means the previous owner installed an M4 receiver extension on your AR10. An M4 RE is 6 and 15/16ths long, or about 5/8ths of an inch too short.
Replied by OleCowboy on topic New Armalite AR-10 - Bolt doesnt lockback?
OK this is easy, you are screwed or in this case since you replaced the stock there is a screw you need to also replace. Call them up and you can send it in or they should just send you the screw. I just went thru this...
Replied by j1mmyr1chter on topic New Armalite AR-10 - Bolt doesnt lockback?
After some more reading and looking at my pic, I am thinking more and more that my tube is the wrong tube. From what I have read, the longer AR-10 receiver extension tube should stick out from behind the collapsible stock by about 5/8" when its collapsed completely. Anybody got a thought on that?
All content of this site is copyright 2003 - 2017 AR-10(T)™, AR-10™, are trademarks of ArmaLite, Inc.® AR10T.com is NOT endorsed or affiliated with ArmaLite, Inc.®
About AR10T.com
AR-10(T) is a community focused on rifles, optics, scopes, gear, accessories, and components used by the professional operator and skilled marksman. Enthusiasts, shooters, and gunsmiths alike contribute to our gallery, articles, and reviews Thank you for visiting!