HK21 Reduce Recoil

Ralph at RDTS does an "E" upgrade to 21's that enhances function and reduces recoil. Not certain exactly what all that he does, but I do know the recoil rod assembly is replaced and different, modification to carrier and a different buffer. I think he also does a modification to the feed assembly. Send him an email and get a complete explanation and price. He did both of mine and they work well.