With an empty magazine, no clip in place, and the bolt locked back, when I depress the follower and pull back slightly on the op rod handle then release, the bolt often stops at the point contacts the follower. This is when I'm being careful not to let the bolt slam shut on an empty rifle to avoid battering metal. When the bolt stops there, depressing the follower out of the way does not release the bolt. I'm not tenderly easing the bolt forward, just 'braking' it enough to prevent slamming. If I just let 'er fly after depressing follower and pulling back slightly from locked-open position, it slams forward just fine. Rifle is very clean, oiled, and assembled properly as far as I can see, and does not FTF when shooting. It may not matter, but what gives?