@Phil: I appreciate the compliment. The first time I saw a Kino, I thought 'God, that is ugly'. Then I thought about it and said 'God, that is genius!'. You get a mid-length sight radius, a permanently staked front sight base that isn't going to work loose and fall off, and more rail real estate for bolting things on if you so choose.
@Cmi: I am assuming you don't have much experience with hunting or the AR-15. If you do, then forgive me. When hunting, you want something that is going to penetrate 6-8" of hide, dense muscle, and bone to get to the vital organs of most game animals. They are a lot denser than people. Ideally, you want a bullet with a high degree of kinetic energy, that will hold shape long enough to penetrate the hide, muscle, and bone, then expand very quickly to give maximum surface area in which to create a wound cavity and depart all that kinetic energy to the vital area. The idea is to stop the animal right away. When you don't, you have to go and find your dinner from where it ran off before realizing it is food. With wild boar and aggressive game at close ranges, you also want them to stop before they take a piece of you.
Military grade ammunition, such as M805/SS-109, which is a 5.56 round with a steel penetrator core, does very good at the penetration part. It doesn't do so hot at the expansion part, and once it travels through that much hide muscle, it doesn't have a whole lot of kinetic energy left. Once velocity falls off, it doesn't have enough mass to keep energy levels at a sufficient level. Military grade ammunition is designed to serve it's purpose within the constraints of the Geneva Convention. Game bullets are designed to hunt game.
The AR-15 is just a rifle. A dedicated game bullet is designed to accomplish all the things a hunter wants. The .458 Socom has a lot of mass, and a hollow-point expands to impart that energy faster across a larger area. Piggy stops very quickly. Likewise, I use a low-mass, high velocity bullet in an AR15 when dealing with nuisance animals like prairie dogs and armadillos. You tailor the load and the caliber to what you are hunting. The bullet doesn't care if it is fired out of a 'military style' gun or a bolt action rifle.
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I'm killing time in the airport on my way back to work, so I figured I'd post a few more pictures from Christmas. I built my son a toy box, and stenciled it with a bunch of dinosaurs and animals. My favorite stencil by far was the turtle. I stenciled it on a couple of IDPA targets for practice before I applied it to the toy box. I found it so amusing that I stenciled one of my steel plates as well. I was going to stencil 'Slow. Armored. Olive Drab.' underneath it, but then I realized I was out of OD paint. So now I am going to stencil 'Slow is Fast', which is a quasi-inside joke amongst military and sport shooters.
I ran out of time to do any processing on this next picture, but it shows you what my 'photo studio' looks like; garage floor, white cardboard, and natural light. The 16" BCM, still on the test mule lower, with EOTech. This is a pretty good indicator of it's final configuration, less the green furniture:
This final set is a case of 'Malibu Stacey has a New Hat'. I haven't been very satisfied with the SpeedFeed forearm on my shorty 870. Not very grippy. I decided to try out the Magpul forearm instead. I'd give it a 'B' for my purposes. It is very grippy, and has integrated hand-stops, which are good. It doesn't extend into the receiver, which is also good. On the other hand, it is too long at the front for my preferences. It won't allow me to use my tube mounted sling/stop, and the hand-stop is further forward towards the end of the barrel then I'd prefer. It feels great for me, but I would not feel comfortable putting it into the hands of a newer shooter in this configuration. I may mount a rail section and hand-stop on it, but that seems a lot snaggier than my old set-up. I am going to ask Magpul if they have any interest in molding me a version that is shorter by 3/4". Otherwise, the forearm quest continues. I am now thinking about the Hogue overmold.
And the business end, with end-cap courtesy of my Canadian friends at Dlask:
Edited because I can't spell 'Prairie'.