Su-16C Plastic Rail Problem

[marsofold]

Got some new AR mags and tried them out on my old Su-16C rifle. Feed reliability problem fixed . I want to put my old Primary Arms green reflex sight on it, but now remember the past problems screwing it down onto the integral plastic rail atop the rifle. The screw had dug into the side of the rail at a torque level that seemed way too light to trust that the sight was properly attached with the necessary rigidity to hold a zero. The plastic rail seemed much too soft for my comfort. Are there any risers that grip the sides of a rail with metal strips rather than screws? That might fix the digging screw issue. Any other suggestions for securely mounting an optic on a rifle that is all soft plastic externally?

 

[ApacheCoTodd]

Looking at mine... I determined to attach the longest (generally speaking) and the LOWEST aluminum rail to the rifle and THEN consider that as the actually fixing point of optics whether they be often removed or semi-permanent.

The various rails I have laying about all spread the tension and abrasion of attachment over a much greater area on the rifle's plastic than does any given sighting device I may choose to use.


Todd.

 

[zaitcev]

I had a UTM 0.83" raiser on my SU before, because it's had just enough see-through for stock irons. But even the 0.83" caused an annoying "jaw weld" for scope. I threw a Bushnell TRS-25 dot on mine. It's not a varmint gun anyway. Both the UTM raiser and Bushnell red-dot attach with clamps, with bolts only getting into the rail slots in order to prevent the motion under recoil.