@clumpyedge
on buying or making barrel covers I’d veer to the side of buying rather than making
I would hazard a guess the initial force of a ND B.B. compared to a ND Paintball at barrel exit is less - but how much is that compensated by a small solid ball as opposed to a large breakable liquid filled ball?
For a piece of safety equipment I’d not skimp by making what could get challenged as not up to standard.
But a site would have access to wholesalers and probably the option for corporate branding with a bulk / trade discount. Then also add them to the range in the shop
For general covers my search indicates that they are the same thing as Paintball barrel condoms, just marketed and branded to airsoft. (Which could help on pricing as sites, distributors and manufacturers these days often span both hobbies)
Put it in the site risk assessment, raise it as a rule, stock up to cover rental equipment, shop stock, and enough to ensure there is plenty for every player initially and spare.
Offer them to regulars - they are going to disappear and they are going to wear away. If the site gives them away for ‘free’ at first (or as part as game fee) then the responsibility begins to go to players to ensure they have them, and the site can stock a number for the shop and rental guns to keep them available.
