DoorGunner: I bought mine in 1967 for the same reason, and carried it on two flying cruises from carriers up north. Used a surplus AF bandolier holster with two spare magazines fitted along the shoulder strap by an understanding parachute rigger. I was not going to become a guest in the Hanoi Hilton.
Mine used to look just like yours (its finish still does). But when the front sight fell out at the range, and I had to have it milled to accept a new one, I went hog wild: SFS kit and Crimson Trace stocks. Had the load ramp polished too, so it shoots anything I've tried. Still, I envy you. Nice backup too.
Well Done, Army!
Jack