Most forums I'm a member of limit a post to 5 pics, so here is the continuation.
The barrel is a PSA 16" midlength lighter weight profile. It is not as light as a pencil barrel. It has a chrome lined bore and chamber, rifling is a 1 in 7" twist. Chamber is 5.56mm NATO. This barrel was chosen due to it being basically the same as the FN barrels that the DoD uses. It is of 4150 CMV steel, hammer forged and HP tested. The 5.56 chamber allows firing of all loads, the lighter profile reduces weight, and harder, denser steel adds stiffness. The midlength gas system is much smoother operating. On the muzzle is a Smith Enterprise Vortex, simply because 5.56 rifles don't really recoil, and a fighting rifle shouldn't announce its presence any more than it has to. Handguard is YHM quadrail smooth freefloat. The reasons for freefloated are for accuracy, and since I don't need 8 miles of rails to hang 14lbs of stuff off of, the smooth is easier on the hands and lighter. A small rail was added to the bottom for a Magpul AFG. I feel the angled grip is more natural for me than straight vertical. The YHM handguard endcap was installed to keep out the large debris. Unseen, the gas block is a regular A-frame front sight I had pulled off of something that I just cut down to fit under the handguard. A rifle length handguard both covers the gas block and gives a rifle length sight radius for better practical accuracy. The front sight is the matching Magpul MBUS.
Now comes the sling. Over the years, I've played with most sling systems and attachment methods, and all lack something. In my mind, all firearms serve a primary purpose; the last line of defense for free citizens. Any other uses (range, hunting, 3-gun) are secondary. After trying a 3-point, I just wasn't going back. I mostly use a 2-point, with rare use of a single point. I wanted a sling that was easy to take off and put on, could go from single point to 2-point, and be quiet. Loops with webbing threaded through them are quiet, but very slow to install or remove the sling, and don't transition from 2-point to single point very well. Hooks on eyes are easy on and off, and transition well, but are noisy. Push button swivels are easy on and off, and reasonably quiet, but don't transition well unless you have extra sockets, which doesn't always work well. My solution was to have buckles. I cut some webbing and stitched loops holding the female ends of a buckle at the stock and rear end of the handguard. They are double layered webbing for long lasting durability. I took a CQB Solutions 3-point sling I had, and converted it to run as a 2-point sling, with male buckles at each end. Additionally, an extra female buckle was added at the rear end so that the front buckle could be moved to the rear end of the sling, making a loop, a single point sling. The front buckle on the rifle will make a small amount of noise on the handguard, but only when there is no sling attached. Other than that, it's quiet, and fast. The rear is attached through a small slot in the stock, and allows quick switching of sides with the rifle. The front is attached via a custom mount that I made from 6061 T6 aluminum and screwed into the rearmost rail attachment hole in the handguard. First, the hole was opened up from 4-40 to 6-48, to use a larger, stronger screw. The rearmost hole on the other side was opened up also, should I suddenly become left-handed. The mount is cut to sit flush against the handguard, and slotted to fit the rail area ridge. Between that and the tabs at the rear, it is locked from movement even though it has but one screw attaching it.
Since Parkerizing isn't really a great protective coating by itself, it is primarily designed to hold oil to protect the surface, exteral parts such as the barrel, flash hider, and castle nut, as well as the sling mount were finished in flat black Norrells Moly Resin. Since the handguard came in flat black, it was finished in FDE Norrells Moly Resin.
Since we're not fighting for our freedoms here, and gangs of thugs aren't busting in my front door at night, it mostly gets range time and 3-gun matches.