I was stationed at DM AFB in Tucson AZ back in the late 70's. There was place on the North end of town called Jenson's Custom Ammo & Guns and they were one of the biggest, and best gun stores I've ever seen. For the most part, every member of their staff was knowledgible and more than willing to help with any questions.

Just wandering if you guys are any relation to that shop? I bought my first AR-15 from them, and several other guns as well.