45 degree rail too narrow, flip ups not bad for price. - TacFire 45 Degree Offset Deployable Iron Sight

Just received my sights today. The 45 degree mounts well to the top of my rifle, however the small picatanny portion where the sight attaches to is too narrow. With the flip ups tightened all the way, there is still front to back motions, and a little side to side play. The flip ups mount just as sturdy as the Magpuls on top of the rifle, without the 45 degree adapter. I did over tighten the one sight trying to get it snug, on the 45 degree adapter, and stripped the bolt.

Only problem with flip ups, and switching between the aperture on the rear sight WILL, throw off your zero. It's very snug on the bolt.