Modifying something makes that item fall under the firearms act.
You make it more powerful by increasing the joules power to go over the maximum legal limits, you're committing a firearms offence.
The 2 years, can't remember if it was policing and crime act, VCRA, firearms act, public safety as some elements of the sport fall under HSE's guidance, controls and the laws at their disposal. Its why you have to have a minimum level of PPE to play.
There is a whole raft of legislation that players do not seem aware of that controls the game or their actions in the following consequences for ignoring those legislative rules for public and personal safety.
I have suggested a legitimate fix to get around the issue, all I am doing is highlighting things that could potentially bit you for failing to do the simpler and better route of replacing the tone parts on the RIF because a "REPAIR" is not technically a modification if the parts are damaged as I understand, replacement tone parts is hard to come across, I have only seen one site and that is in the USA. (no I don't have a bookmark for it)
We have been discussing the painting of an IF into a RIF thus ‘modification’ under the VCRA - which has a maximum 51 week sentence if a crime is committed.
Modification by changing parts and increasing the power is a different matter. I’ll get back to that in a minute
The VCRA does not care if you can find coloured parts or not. Change a coloured stock to a black stock and you have modified an IF to a RIF which may or may not be illegal based on section 37 defences.
You have the option to paint a black stock into an approved VCRA colour which would retain IF status
You’ve complained about legal grey areas but keep proposing other grey areas.
Now back to increasing the power of an airsoft IF/RIF.
Not long ago there was the legal quandary that an airsoft gun was a low power air weapon (firearm) and therefore was strictly speaking not an imitation.
If it’s a firearm then the VCRA does not apply and it does not matter what colour it is as it is neither an ‘Imitation Firearm’ or ‘Realistic Imitation Firearm’
(This may trigger another side conversation that an airgun looking like a real steel firearm is both a firearm and an imitation. I shall say it’s not because it’s a firearm, so can’t be an imitation)
This contradictory position was removed from the firearms act by adding the statement that a UK compliant airsoft gun within the specified power level and designed to fire plastic BBs is no longer a firearm in the firearms act and falls under VCRA criteria if either an IF or RIF
So what if you do modify an airsoft gun and increase its power?
It won’t be legal for airsoft skirmishing
But it won’t be an illegal firearm
Unless it’s power is vastly increased it would now be a low power air weapon
Thats a problem in Scotland now with the need for an air weapon certificate, but not in England. It’s just an airgun
I have an extensive armoury of low power air weapons which are both realistic and non realistic, but I use them to legally shoot people with UK approved frangible projectiles, and I also have the details from the Home Office stating that’s fine (with an addendum that if a court decided my realistic ones are RIFs then my UKPSF membership will be fine as the skirmisher defence - which certainly wouldn’t stand up in court to scrutiny, however since that statement was made the joules adjustment to legislation was made, and they exceed that power level so are clear of the VCRA and are compliant with approved testing of the frangible projectiles
So I’m back with very legal firearms and no need for a firearms certificate
By the way - the minimum level of PPE in airsoft is shite. Eye protection that is currently permitted under the law is at the absolute minimum of impact protection, such as glasses with impact protection. Only some airsoft eye protection is adequate to the risk, but as an adult players are permitted to take that personal risk by sites and their insurers. For under 18s it’s recognised as inadequate and they are required to use full face protection (effectively by the insurance industry not being able to offset the sites liability to minors)