Brent shared these pictures on his instagram account. The Delta Hbar is a pre ban rifle I have long wanted. Back in the 80s Colt put this together from selected barrels to be a more accurate A2 rifle. A cheek piece was added with a leather military sling. The optic is a rubber coated 3x-9x Tasco ( lame) on a ARMS mount and the gun came with a hard case. Word is they actually are very accurate. I have never handled or seen one in person myself though.
There are a couple versions. One came with the SP-1/A1 profile lower and one with the newer A2 profile lower but no bayonet lug . There was an option that came with the Colt .22 conversion kit as well.