Just getting ready for OP: Nonods..
My Project de Jour - a greatly improved flexible LMG mount for my Airsoft Stoner 63A LMG, mounted to my Kawasaki 250 ATV field mule. I love vacation quality-time spent in the garage
Extra horizontal arm added between base mount, and upper portion of the gun mount portion. As shown in picture, it is in vehicle-movement/at rest position, with the box-mag resting upon the horizontal arm. Both ends of the horizontal arm rotate 360 degrees, allowing the Stoner 63A LMG full range of elevation and traverse.
Thinking of a big-arse "fuck-off" halogen spot-light gimbled to the top portion of the gun-mount, and a small mounted shield forward of the top portion of the gun-mount to complete the effect.