I got a 16" barrel and handguard for sale $250 for both dont have a use for them since i sbr my mpx great for quick conversion of a pistol mpx into a rifle just for more options or cutting for sbr or spare barrel. its for a gen 3 mpx and im pretty sure its able to work in a gen 2 only shot 2 mags through it txt 3372461285 for more info or pics not that there is much to give can drive whithin a reasonable distance. headin to gonzales in the middle of the month can meet around there