Stinger built this AR for me and did a great job. I did the barrel break-in last week, then took it to the local 3-gun shoot Sunday.
It shoots great. About 175 rounds thru it so far w/ zero malfunctions shooting Ultramax 55 gr FMJBT.
The comp holds the muzzle steady, and the JP adjustable gas block lets me reduce the amount of gas going to the bolt, so it cycles a lot softer. It gets enough gas to reliably lock the bolt back, but no more.
The Clark carbon fiber forearm looks great, and is about 7 oz lighter than an aluminum tube. And it will not heat up during high volume shooting.
The JP trigger breaks at 3 3/4 pounds.
No serious accuracy testing yet, so no info in that department, but I'm sure the JP barrel will do under 1" using good ammo.
Glad you all liked the pics.