MR556 Upper versus MR556 Upper receiver kit
I have a lonely MR556 lower. I am looking for an upper for it. As I recall, the complete uppers were going for around $2000-2100 new. Now I am seeing places selling an HK "upper receiver kit". Says it has everything included for like $1600- 1700. From what I can see of the stock photos, the upper in the kits is not marked with the Columbus, GA or MR556 A1 markings. Looks like it just says HK on the left side of the receiver. This is being sold by lots of sellers and reputable places
Does anyone know what this is? Why is it a kit, and how is it different than the uppers that have been sold all along...ie the price difference?
Thanks for the help