I hate threads like this. You made a stupid RP decision to give away your guns to someone who could turn against you in the future, and now you're paying for it. RP concequences for RP actions. Now you want to add OORP concequences for their RP actions? That's not how it works.
Remember it is not your obligation to hand out tech to anyone who asks. You have the right to deny as many requests as you want. As a rule I never give away tech to Pirate or Merc/Freelancer IDed characters unless I know I can trust them unconditionally.
They might cry and moan about it - but it's not their right to use mismatched tech. If they want to use the tech that badly, then they can use the ID that goes with it.
Also; Pro Tip: Never give tech to Reavers, or hire them for that matter. They're just going to shoot you back once the money is good enough. Any faction that chooses to hire them is pretty stupid tbh. You all might complain about the Reavers behaviour, particularly in regards to tech, but it is you who have enabled them to do so. Even after witnessing them do the exact same to other factions in the past. So who's to blame?