It looks like an RS Prop kit although it does appear it was assembled using the overlap method rather than but joint with cover strips. This kit also doesn't fit the wearer as well as it could and may not fit you the best either. If those limbs aren't joined as per the CRL it will need to be pulled apart and assembled correctly to gain 501st approval specially if you intend to aim for Expert infantry and Centurion.
If its assembled with E6000, that is a very possible thing to do, but if it is assembled with CA glue, it would be quite difficult to pull apart and you risk damaging the parts.
If they are in fact cover strips on the shins thighs and fore arms, they look awfully wide and would need to be replaced with narrower versions.