A bit of back ground on myself.
I have studied and practiced martial arts.
I have owned weapons, including guns.
I have rationalized the practice of martial arts and use of weapons with the knowledge of archery in Zen, Kung Fu in Chinese Buddhist temples, etc.
And then one day it hit me like a bolt of lightening - One who is truly committed to non-violence and non-harming doesn't engage in activities whose origin is violence and harming. There are other arts to appreciate, other practices for physical fitness, other ways to compete, without the need to condone, glorify, and even give a spiritual "alibi" to practices and implements whose original purpose was the harming and killing of fellow sentient beings.
As much as I liked telling myself I had guns for target practice, I collected martial arts items in appreciation of their artistry and craftsmanship, or I engaged in judo and karate for the sport and for fitness, the fact of the matter was, I was still attracted to these things because I got a vicarious thrill out the violence they represented. There was no way to escape what the original intent of these items or practices is, regardless of what I told myself my intent was. Every time I looked at or handled weapons, or practiced katas or sparring, I was watering seeds of violence in my mind.
So now all of my weapons are gone, and I no longer practice or compete in martial arts. I even quit Tai Chi, and now practice yoga, walking and other forms of exercise. And since then, I can't remember getting angry enough at some one to even yell at them.
How many Glocks or long bows you figure the Buddha owned (after he left the palace that is)?