great deal. Would jump on this if I didn't already have an 18" SPR barrel from them.
Edit: And crap, couldn't help myself. Another backup 18" SPR barrel is ordered. Convinced myself these will never be lower priced than this. Get them while you can.
I am sure with pin gauge and WOA confirmed the port .108. I'm gonna try the standard gas block mounted with a sliver covering/reducing the port. I bet that works.
Got the thing built up today with parts laying around the shop. Even put an old Harris bipod on it. My new pup helped me out with chewing the daggum tension adjuster handle. HAHA. Adds character.
May I present, so auspiciously named and built on "International Talk Like a Pirate Day", "Calico Jack" SPR: