I used my kids paintball nitrogen bottles for years on my model jets, just bought a paintball regulator and a button switch.. i had to be very careful not to over fill pressure wise.. it worked well. One drop of oil in each valve in the spring before the year.. I sometimes has some self induced leaks and had to keep a spare tank..

Finally I bought a good air pump, bought one of todd's little air dryer filters and never looked back. still one drop of oil per year in my valves.. I use air tool oil. so will it work..yes very well, is it necessary? not really..