What are the specs on the barrel (metal spec, twist, etc.). Micro Lite gas block? Is this package from Sig, or aftermarket??

Todd

Referenced product: UAM400-16B-E-KIT-SOR52001

We package the Romeo5 with the upper. The upper comes from Sig. The barrel is nitride coated. This has a carbine length gas system. The upper weighs 3lb 5oz and has a 1 in 7" twist. The gas block is Sig's and we believe it is the M400 low profile gas block.

Rate the answer?