Free: Contests & Raffles.
The reason there are so many Ruger upgrades is because they're necessary.
One guy I took hunting brought (and carried) seven guns one time. .308 (long range)/.45-70 trapdoor(med range)/10 ga SxS(buckshot-close range)/.500 S&W(bears)/.45 ACP(tweekers)/.22LR boot gun(tweekers)/derringer(tweekers). He made a ton of noise and could barely make it through the forest. We still rib him about it.