To enhance an existing rifle, not worth it at all.
If you're building? The Rainier, LaRue, and VLTOR uppers are all fantastic, there's a couple more recent ones to consider too - I run a pair of MUR's on my precision oriented builds.
Weight is almost identical, and performance really isn't affected. Mostly cosmetic, but the forged MUR's are the nicest looking uppers out there.
عندما تصبح الأسلحة محظورة, قد يملكون حظرون عندهم فقط
کله چی سلاح منع شوی دی، یوازي غلوونکۍ یی به درلود
Semper Fi
"Being able to do the basics, on demand, takes practice. " - Sinister
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