Is a combat drone with 2 Melee Weapon Arm equiped with battlegloves able to use those arms as Manipulator Arms without the -4 to hit as well as being able to use them for Engineering to disable devices?
No seems to be the only sensible answer.
The battlegloves are always in their fist punching mode when installed as weapons.
This is a cheesy attempt to get something for free
In theory you could mount them on melee weapon armors fine but they are not manipulator arms so basically think rockem sockem robot hands. You would put them on manipulator armors but would take the penalties because those are not designed as combat arms.