Materials and workmanship of this 100mm Weaver-rail - for just 5 - excellent. Precisely machined aluminum, without sharp edges and corners. The size of the "blocks" between the transverse grooves is greater than usual (see picture). The underside is slightly curved inward, for a better fit on a round surface, but is not a problem on a straight surface. Bugbear: the screw. There are 5 to choose from - the distance to one's needs Maybe it. Or maybe not - as in my case. There's only a drill press and a little skill. 5 black Allen screws (M4 I think) along with key are. I needed M5 ... Why you need 5 screws to 10cm, I do not know. Well, a couple to have in reserve harms nothing. Conclusion: one can easily spend 3 times for such a track, maybe it will fit even then. Or you can take them here and what does not fit is made to fit.
