I have a 20" Flattop upper as follows:
RRA flattop upper
BW Chrome-lined 1/9 barrel turned to A2 profile by KKF and fitted with Kurt's A2 brake.
B,C,CH are also RRA
Standard black handguards
This setup was put together by a pro and shoots like a dream right around 1 MOA at 100 yards with SA ball and 0.7 with Black Hills 68 gr.
I'm looking to trade for a 16" flattop upper complete, preferably M4 profile, but will consider HBar or V-Match.
Thanks for looking,