INFOFROG, Love the build.....a soft spot in my heart for the old Huey Gunz....one thing I noticed on almost every UH-1 I worked on (from Vietnam) had patches in the floor board......beer can flattened and riveted in place, painted over with either flat black or gray spray paint (depending on the color of the interior) the floor had a kind of diamond pattern to it......they changed it out with the Black Hawk ....easier to wash out the interior........our M-60's that were hooked on cables had small cans safety wired to the receiver to help guide ammo in and reduce jams.
Most often, Crew chiefs only used the door gun on close threats, otherwise we were to busy keeping the guns fed (especially if you had mini guns mounted)
Love your build, love your build
V/R
Dan
thank you