New Rainier Arms RA-308 Rifle

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Rainer Arms has released their first complete .308 rifle, the RA-308. Outfitted with their UltraMatch billet receivers, the rifle comes complete with a corresponding 16″ (1/10″ twist) UltraMatch barrel (Shilen-blanks) and 14″ Switch .308 rail with continuous top rail and keymod slots on the sides and bottom. The lower receiver is flared for easier magazine insertion.

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The rifle is ambidextrous, with an ambi charging handle (the Raptor), safety selector (BAD-ASS 45-degree), and bolt releases. For recoil mitigation, the rifle comes with Rainer’s black-nitride finished “RAC” or Rainier Arms Compensator. In case .308 does not put down your target, the MFT engage pistol grip and MFT Battlelink stock round out the rear end.

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The rifle weighs in at 8 lbs, 6 Oz. unloaded and is currently available in black on Rainer Arm’s website for $2,695.00

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Photos of the Coyote rifle are courtesy AR-15News.com and XfirePix. 

Features:

  •  Rainier Arms Ultramatch 16″ Stainless Steel Barrel
  • 1 in 10 Twist
  • Mid Gas System
  • Rainier Arms Match .308 BCG
  • Rainier Arms Compensator .308 Black Nitride Finish
  • Rainier Arms Switch .308 Rail 14
  • Rainier Arms Raptor Ambidextrous Charging Handle
  • Rainier Arms Ultramatch 7075 Billet Upper Receiver Type III Hard Coat Anodized
  • Rainier Arms Ultramatch 7075 Billet Lower Receiver Type III Hard Coat Anodized
  • Ambidextrous Extended Bolt Release
  • Flared Magwell
  • Integrated Trigger Guard
  • Geissele SSA Trigger
  • Battle Arms Development 45 degree selector
  • MFT Engage Pistol Grip
  • MFT Battlelink Utility Stock

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Nathan S.

TFB’s resident Jarhead, Nathan now works within the Industry in Operations, Sales & Marketing. A consecutive Marine rifle and pistol expert, he enjoys local 3-gun, MSR’s, high-speed gear. Nathan has traveled to over 30 countries in the last three years working with US DoD & foreign MoDs. You will likely find him either in an international airport or on the local range in NE Indiana.

Nathan can be reached at [email protected]


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  • JohnnyBGood

    but does it come with that magazine…

  • JumpIf NotZero

    Rainier wasn’t dumb to use branded MEGA upper and lowers. Good on them. Price is high imo, but the parts used are nice.

    But as to that main picure… I get that some people still haven’t seen the light of mounting their optic as far back as possible to increase field of view esp in uncommon or unconventional shooting positions, there is a matter of preference there…. But really, who spans their optic on to their modular handguard rail like that!?

    • Arc

      That’s Steve Coulston, former Navy SWCC.

      The optic can be mounted on the rail just like that if it is a properly installed free-float rail.

      • JumpIf NotZero

        Lol, well, if he was once in the Navy!! I swear, sometimes the Internet thinks that being SF makes you a genius. It doesn’t. You may be good at your job, but not even 1/1000th of that job is setting up a carbine. I’ve met SF guys who aren’t really excellent shooters, and that’s pretty common because they do a lot of things besides shoot. If I need someone to run a PT course at 3am, I’ll get a SF guy. If I need a carbine set up, I’ll go to an armorer who knows their stuff.

        No. If we’re talking a standard upper and barrel nut attached rail, a single mount should never span the two rails. Not Ever. I don’t care who’s rail it is. This is not even a sort-of-ok-sometimes-if-it’s-“properly”-installed issue. It’s just no, you don’t do that.

        Things like LaRue’s special upper, Mega’s multpart attached upper/rail, Vltor VIS, Seekins has a model, etc all fine and good to go. This…. No.

        That is Fortis’s Switchrail, so I’m seeing even more Nope than a very tightly locked down, shimmed, and happens-to-be-mate-up-to-rail-spec rail. This is swappable rail system which by it’s entire function must have extra tolerance than other designs.

        You “can” span the gap obviously, but zero is not going to be repeatable, and I would expect huge shifts over temperature, unwelcome stress in the optic’s mount. The bigger joke here is that three of the four groups I’ve trained with in carbine, can’t mount their optics back far enough. I said before that’s a preference thing sort-of, but two or three rail spaces forward is pointless if you have to make the compromise to split the gap.

        This is just a bad practice, which makes it a bad photo. If this was an optic that wouldn’t fit without spanning the gap, well, that’s what cantilevered based are for, but this is a photo with infinite rail space. The optic would literally be better off on the handguard alone, AK style.

        • Nicks87

          I agree, even the slightest bit of play between the rails is going to make it a real pain in the ass to shoot consistant groups. I have heard of bridging the gap with a riser to tighten things up but I would never do it with an optic mount.

          • JumpIf NotZero

            Yea, even on the rails/riser that connects to the upper, like the PRI specifically, you’re then attaching the optic to just that. Designed for it.

    • JohnnyBGood

      From what I understand, and from personal experience, moving the optic forward allows you to see through the sight better with both eyes open. By that I mean, when the optic is placed in a forward position the different images your two eyes get allows you to better see through the frame of the optic. You result may very, but I’ve found this help me out quite a bit.

      • JumpIf NotZero

        Mounting to the rear as much as possible gives you more field of view. Your head doesn’t need to be in just the right spot to see the dot. With both eyes open you aren’t looking down a tube at all, your entire vision supports the dot at any point.

        If it were possible, and someday it will be, I’d put dot on a contact right on my eyeball. In the meantime, backwards as much as possible is the most lenient for cheek weld, moving, and removes the “tube effect”.

        All the same, I don’t care where the optic is mounted, if you like it forward, do that. But the topic at hand here is the an optic mount should never span the gap on a barrel nut mounted rail on the AR15.

        • JohnnyBGood

          Maybe this isn’t reflected by other people, but when I bring the optic rearward I begin to pick up more of the frame which blocks my FOV. I believe that comes down to how well one’s eye’s can cross (mine don’t at all). With magnified optics it’s more complicated because moving rearward will give you more magnified FOV, but can lead to less total FOV. That couples with eye relief is the reason I run magnified optic more rearward compared to my micros which I often run as far forward as possible; which, for me, doesn’t block hardly any of my FOV. My conclusion is this might be more subjective after all than previously speculated.

          As for spanning the two, obviously horrible practice. What probably happened was they threw the gun together for the photo shoot and a day of some shooting. You won’t shoot moa consistently (if at all) with a mount setup like that but you can shoot minute of bad guy or steel plate. That’s most likely what’s going on here. Doesn’t make it right, but it is what it is. Plus, to be fair, the topic was only one sentence in the comment I was responding to making it hardly the “topic at hand.”

        • cmorrow

          I kind of thought field of view doesn’t really matter on a quality red dot. They are meant to shoot with both eyes open – your field of view should be fairly normal, and the dot will just kind of hang out in front regardless of the size of the tube or variance of front-back. There really is no eye relief issue on an RDS. They’re not meant to be used as a scope, where your field of view would then become an issue to be concerned with.

          That said – it does seem that putting it across the receiver and rail would be unwise, but more from a durability/retaining zero perspective than a usability perspective. Perhaps the rifle balances well with it at that spot because they’re using one of those huge, heavy, expensive X10 magazines.

          • JumpIf NotZero

            If dot is closer to your eye, your head doesn’t need to be in just the right position to see through the tube and pick up the dot. Try this at home. Its immediately apparent that shooting two eyes open should remove everything but the dot and allow for the most flexibility in cheek weld. Also, a high mounted optic allows you to get your head up a bit and not so fixed down on the gun, same cheek weld issue.

            It’s preference, but there is zero reason to ever span the gap.

      • valorius

        Thats irrelevant on a zero mag optic.

  • Mahler

    It’s just a little thing – I don’t like not having a forward assist. I know, I know… it’s certainly not the end of the world, but I’m just so used to it I do not like not having it.

    • JumpIf NotZero

      You don’t need it…. Until you do ;)

      • adfdsf

        “Hey, this round’s not going in, I’m sure the best course of action is to cram it in! Screw ejecting it and loading the next round in the magazine, I’m sure it won’t get stuck in the chamber and need to be prodded out with a stick when the rim rips off.” said no one with a brain, ever.

        • JumpIf NotZero

          I’m not clear on this… Are you happy to point out that you don’t know how to run an AR? Because that comment clearly states exactly that.

          I suppose you don’t ever check brass right?

  • valorius

    I didnt realize they made an ar drum in .308… Pretty neat. Anyone know the capacity?

    • dfasdf

      50 rounds capacity. It is about the same length as a Mapgul 25 round 308 mag.

      • valorius

        Thanks.

  • valorius

    The rifle is,vastly overpriced.