Any guidance on where to source or create an ammo belt for my sas jeep .50 cal?
It really depends on how detailed you want it and materials it’s made of. Frenchy’s pointed out one of the newer options, a raised resin decal. Other options:
Photoetch:
https://www.super-hobby.com/products/Ammo-belts-.30-and-.50.html?srsltid=AfmBOoqs-KvjyLaQh_piy5Z2EahblMDJM2YFy8hEXHSVCYz0qf2uHlxe
Photoetch (precolored):
3D Printed Flexible (my choice!)
https://www.super-hobby.com/products/Flexible-Ammo-belts-Cal.-050-37580118.html?srsltid=AfmBOorBzBXsoeIk5Kr9dl82hIHowWPP8AnW2-fvLFJ9lqWZDUJn_JWj
https://www.super-hobby.com/products/Ammo-belts-12-7-mm-21004474.html
And if you can find it, build your own from PE and Turned Brass:
https://www.vodnik.net/pages/Mission/ammo50.htm
I’ve ordered from Quinta Studios myself - still awaiting overseas shipment. I anticipate being quite pleased. However, if all you need is a few links between the ammo box and the MG, the AFV Club M2HB set might be for you. You get the ammo belt and a whole lot more for the same money.