I was able to shoot my POF 14.5 in upper(pinned FH) with Predator P4X Rail for the first time today. I put about 150 rds of mixed Wolf 62 gr and Federal XM193. Upper was on a standard LMT lower with collapsable stock. Range was 50yds to sight in. LMT BUIS with Aimpoint on a Larue mount. Nice looking setup with the LMT BUIS. Hope to get some pics soon.
I was more than impressed. I was ecstatic with its function and overall feel, even with the limited round count. I shoot left handed long gun and it was nice not to get "gas in the nose" after each round fired. I shot about 60 rds with a standard carbine buffer and then switch to the Enidine. Recoil with the standard buffer was mild but with the Enidine it was extremely mild. It does make a difference even in semi. With a muzzle brake(upper has the standard POF vortex) and the Enidine the dot would probably not move off of target.
The other nice feature was the brass consistently ejected forward at about 2 oclock in a nice little pile. No problems were experienced (used an HK mag and a 20rd colt mag) and once it was sighted in at 50 it would lay them on top of each other if I did my part. I heard these barrels may be from Mike Rock so that would explain it. Maybe Frank can elaborate or already has and I missed it.
I lubed the carrier, cam pin and slot with a lite coat of TWB25. Everything else was pretty much dry. After finishing up there was some residue on the bolt face but nothing like an gas impingement gun. The bolt body was completely clean.
Thanks POF for a great product. I am definately sold and probably will not go back to a gas impingement gun. A 6.8 or .308 version would really seal the deal.