**Entry in weaponcfg:**
getArray(configFile >> "CfgWeapons" >> "srifle_LRR_F" >> "WeaponSlotsInfo" >> "CowsSlot" >> "compatibleItems")
Return:
["optic_Nightstalker","optic_tws","optic_tws_mg","optic_NVS","optic_DMS","optic_LRPS","optic_ams","optic_AMS_snd","optic_AMS_khk","optic_KHS_blk","optic_KHS_tan","optic_KHS_hex","optic_KHS_old","optic_SOS","optic_MRCO","optic_Arco","optic_aco","optic_ACO_grn","optic_aco_smg","optic_ACO_grn_smg","optic_hamr","optic_Holosight","optic_Holosight_smg"]
**optic_AMS wiki entry with correct spelling.**
https://community.bistudio.com/wiki/Arma_3_CfgWeapons_Items#optic_AMS