Not sure if this will help but ABO USA says they will repair any scope:
ALL OTHER MANUFACTURERS' PRODUCT REPAIRS:
For products that expired warranty period, due to damage, abuse, improper handling, negligence, misuse alteration or unauthorized repairs or modifications voids the original warranty. Please send $38.00 per product, within continental USA, for labor, return shipping and handling. If your scope requires the parts, you will be advised of the additional cost for the parts prior to any repair.