If you want it to feed, you need to cut a feed cone on the chamber mouth. The feed cone needs to be identical to the one on a AR15.
The center feeds were introduced in late 2005 on certain models, and at the same time stagger feeds were still being produced. As of Jan 2008, all models were center feed, with the .223 and .204 the last calibers that were changed over. Anything with a serial # over G700000 is a sure bet to be center feed.
The round top rear receiver was introduced about the same time as the accutrigger in 2003, but were still stagger feed.
Bookmarks