This is a discussion on AR Opinion, Stag or S&W within the Defensive Rifles & Shotgun Discussion forums, part of the Related Topics category; Looks like you are taking a rational approach, and good for you in doing the research....
Smith & Wesson
Looks like you are taking a rational approach, and good for you in doing the research.
"Just blame Sixto"
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RE: Parkerizing under FSB - Sounds rational enough. I think it's more circumstance than personal interest that the better upper assemblies and barrels out there also happen to be park'd under the FSB.
RE: barrel steel - If you're not shooting thousands of rounds per year then no, there isn't really much of a difference between the two types of steel.
RE: twist rate - For the .223, twist rate doesn't do much for terminal ballistics (what the bullets do to a target). However, it does have a pretty big influence on external ballistics (how the bullets travel on the way to the target). 1:7 twist can and will stabilize plain old M193 just fine, and it isn't until a few hundred meters that groups start opening up into patterns. Tighter than 1:7 becomes a waste, since nothng that needs such a fast rate of twist really fits into an AR15 magazine. 1:8 is pretty much as tight as we ever really need, unless you really like shooting tracers. Since you're using this as a defensive gun, a 1:7 or 1:8 rate of twist would be the way to go.
Sounds reasonable enough. I'd still pick RRA over Stag, but I paid dealer price for my RRA. And RRA makes one heck of a 1911.What I have learned basically is this: I am not going to be going into combat in the jungle or the desert with this rifle. I am going to go to the range from time to time and other than that (and maybe a self defense rifle training course) it is going to be at home as a home defense rifle. And with that in mind, I honestly think that the Stag would serve me just fine in this role. So, at this point, I am still leaning towards the Stag.