If you are looking for a non-lethal weapon, many people consider a Taser or Stun Gun, but many people aren't aware of Pepper Spray Guns, which in some ways is a better choice.  Many people are only aware of the smaller handheld pepper sprays.

Pepper Spray Guns are very effective.  They shoot further than a Taser and don't require precision accuracy like a Taser to hit your attacker.  The pepper spray contents will distribute over several feet affecting an attacker.  However, blowback from the spray can affect the user as well as the attacker. 

If pepper spray is released indoors it can be messy and smelly, although non-toxic, which will require some cleanup.  Below are the 5 Pepper Spray Guns that we carry. Check them out for further information and see if one fits your needs.