Most paintball 'gun oil' is just re-packaged Hoppe's #9 gun oil or mineral oil. Gun oil is used in only a few markers anymore (ie Tippmann 98, Spyders), more common would be dow 33 or dow 55 to lube o-rings. Not sure how they would work in airsoft applications or if I'd want to use them in airsoft applications. The dow products (also known as lube.. yeah, make your jokes..lol) are designed to swell your o-rings to better seal the paintball marker. Both 33 and 55 would be too thick to be sprayed, they would have to be directly applied to the o-rings.
The Tier One Tactical Operator
Tippmann Arms M4A1
KWA USP .45, KJW P226, KJW hi-cappa