Bought 2 Shilen 20" stainless barrels with the 8R ratchet rifling in 1/8 twist. I put one together with a DPMS low pro A3 receiver, JP VTAC forend, 2x8 Shoenfeld 30mm scope with illluminated Mildot, and a Tasco optima at 45 degrees to the right for up close, have not shot it yet. It is on a DPMS lower with an A2 buttstock. I did take pics of the building process.
Next: DPMS LOWER, Shilen barrel, Armalite A3 upper with t marked rails, forward assist, making this one into a DCM gun, so I got a Bushmaster free float DCM forend, and an A2 Colt carry handle. I will take pics of this build as well.
Still waiting for the complete range report on the Bohica .50 upper from KPR, I think I want one before November.