Is There Anywhere One Can Buy Internal Parts For A Nerf Longshot cs-6 Without Having To Buy A Whole New Gun?

I Modified My Gun And Being A New Modder, I Accidentally Took Out A Part Called A "Dart Tooth" And Now It Doesnt Fire Properly. The Gun Has To Be Primed And Then Has To Have The Dart Shoved Into Place By A Ramrod. i Just Need One Part.