As yall know from my previous posts,I'm a a-bolt fan. There are several reasons for this. A-bolt has 3 locking lugs,60 degree bolt throw,X spring in mag instead of W spring,concealed detachable mag,tang safety that naturally lays under thumb,comes factory glass bedded,much slicker out of box bolt travel,excellent accuracy,I could keep going but I think you get the idea by now.