work on mk12 spr project, only thing that I need is the mark4 scope, does not want the 50mm obj one, the only one that I am able to find is 40mm with M3 turrent cap, specification is 168gr 308win. will it work for 223 projectile, 77gr, 75gr, 69gr...
any gunners? your answer will be really helpful.
any gunners? your answer will be really helpful.




















































