yup just paint it and glue it. The mount for the gun will be in nato green and the gun wil be a dark gunmetal with a black buttstock and hand grip. I think its pretty obvious is the gun is a direct decendant of the MG-42. If you notice some details missing on it just get a plastic 1/16 Dragon MG-42 and paint to fit. The dragon ones are almost prefect for details.

You have an extra ring block there too. Its up to you if you want to remove the one on the kit or if you want to just glue it to the kit supplied slider block.