Please don't take this comment wrong as I don't mean to be disagreeable, but you should at least carefully consider other cartridges/calibers if the primary purpose for this firearm is home security.

That said, I have carried only a .22LR handgun or rifle many, many times in the past.

Other great takedowns include the Marlin 70PSS and the Taurus (formerly Rossi) Model 62(.22LR) or 72(.22WMR). For more money and total weight, AR uppers are available in .22LR. The NEF/H&R single shots are simple & take down easily but are heavier.


http://www.marlinfirearms.com/Firearms/SelfLoading/70PSS.asp