i'm no fan of bullpups either especially the ridiculously overpriced offerings from daystate etc, however watching the vids on youtube of the full auto airguns decimating tin cans etc on the range I can see the appeal of those for mad plinking sessions for a laugh. (& a lot less dangerous than full auto firearms) My titan mp3 is all the carbine I'll ever need though & the wife loves shooting it as it's so light.