Hoo-Yah, Marine ~
That's a neat idea.
The two photographs are effective and convey a serious message.
I once attended a Navy Photo INTEL school while in the service; allow me to bring up a few points-of-interest here for your edification.
Due to the fact that you're a big fella' and you present a formidable presence, consider having your camera-man move back a bit and include a violent, blood-thirsty 'bad-guy' in the picture. It may not be easy to do but if you could give the public a graphic example of why it's important that free man retain their arms for means of lawful self-defense it could feasibly help many fellow citizens to "wake up" and get smart.
Your idea of distributing posters may serve as an effective reminder to others of our God-given, inalienable right to self-preservation. I wish you well in your ventures, Marine.
Thanks kindly for your service to our country. <Hand Salute>
ex-U.S. Naval Special Warfare