FN Herstal Firearms banner
1 - 1 of 1 Posts

· Registered
416 Posts
Light reflection causes the "purple effect", the rails are mil-spec anodized black. The reflection can be minimalized by "etching" or "blasting" the parts prior to anodize process but that also effects how easily and smooth accessories slide on and off the rails.
1 - 1 of 1 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.