Buy from Todd at ORF for the service alone. I bought an HK94 from him and he did the following for me:
1. extended their sale three days past the end date for me because I didn't find out about it in time.
2. swapped out several "stock" parts and added upgrades (straight grip and paddle release, 16" barrel instead of 10" w/permanent supressor) even though this was not part of the sale terms.
3. Returned my emails within usually two or three hours with all my (dumb) questions!
4. Stood behind his warranty 100%. Approximately once per magazine I was getting a failure to eject. It turned out the Special Weapons ejector was not heat treated and had mashed itself out of spec, so he sent me an acutal HK one for no charge and now things work great!