While were on this subject, who makes a good upper and what barrel length is recommended for the 6.8?
6.8 works really well in 16-18" barrels. I have a 16" Precision Reflex upper. I love it but it was $1,000. It is a match grade SPR barrel.
A cheaper alternative is Iron Works who is a sponsor on the 6.8 forums. They use an ARP barrel which is very good and very popular.
http://shop.ironworkstactical.com/category_s/1843.htm
