Latest AR308 build should be @ 4.5 pounds
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  1. #1
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    Default Latest AR308 build should be @ 4.5 pounds

    The goal is under 4.5 pounds using DPMS Gen 1 AR 308 pattern parts.

    My last AR308 got down to 4.99 pounds by 1/5/2016 using the 23 ounce receiver set from Tactical Machining.
    The Xanthos receiver set weighs 16.6 ounces so an immediate 6.4 ounces cut.
    Also latest CF hand guard is 0.2 ounces less and hoping the next pistol grip will cut between 0.5 to 0.7 ounces.

    Upper Parts:
    2A Armament Xanthos Upper receiver 7075 T6 @ 9.00 ounces
    X-Caliber 416R 16 inch fluted barrel @ 31.3 ounces
    2A titanium gas block @ 0.60 ounces
    Gas tube mid length @ 0.80 ounces
    titanium muzzle brake @ 0.65 ounces
    Clark Custom Aluminum barrel nut @ 1.18 ounces
    AR 308 carbon fiber hand guard 1.60 ounces in mid length 10.5 inches
    Toolcraft Titanium 308 BCG @ 11.80 ounces with ti firing pin
    Vltor charging handle @ 1.25 ounces



    Lower Parts: Total weight 18.60 ounces with SSA-E trigger

    2A Armament Xanthos lower @ 7.30 ounces
    Mag Pul K grip @ 1.7 ounces
    V7 titanium grip screw 0.113 ounces
    V7 Mag catch aluminum 0.173 ounces
    V7 Aluminum/titanium selector 90 degree 0.293 ounces
    V7 aluminum AR 308 takedown pins 0.26 ounces
    V7 tool steel bolt catch 0.31 ounces
    Smoke Composite stock 3.3 oz.
    AR308 carbine buffer (no weights) 0.85 oz.
    NF polymer trigger group 0.65 oz with titanium trigger pins
    SSA-E trigger group 2.6 ounces with titanium trigger pins

    DPMS carbine buffer spring @ 1.5 ounces
    Titanium buffer retainer, mag catch plunger








    Will be using the Leupold 6-18x40 Mark AR MOD 1 Riflescope @ 15.2 ounces and the Aero Precision 1" mount @ 3.0 ounces
    Last edited by breastroker; 05-21-2016 at 03:38 PM.

  2. #2
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    Default

    You are an animal with these light weight builds! Hope it doesn't kick like a mule being its so light.

    2A makes so beautiful receivers. I'm headed to fondle my AR15 set now!
    Last edited by Spearjunkie; 01-27-2016 at 09:02 PM.

  3. #3
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    Default Low Recoil already

    If the last 4.99 pound didn't kick then the same barrel, BCG and gas system will be equally low on recoil. Remember I am gimpy, BAD right shoulder.

    Yes there is a push when I fire the rounds, but if I can fire 40-60 rounds each time at the range then just about anyone can. Only a little more recoil than a 6.8 with 140 bullet.

    Normally this rifle will have a SSA-E trigger and a V-7 Furion titanium muzzle brake. But like a boxer for weigh in, I will use the polymer trigger group and ARP Shorty brake for weigh in. The Shorty is perfect for hunting, just not enough recoil reduction for me to shoot 60 rounds.

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  5. #4
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    Default

    Man those xanthos reciever look nice are those in pic od green? hard to tell if green or grey with lighting. Hopefully they won't be out till summer, I need to get some bills paid first lol.

  6. #5
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    I think the one shown is in the raw before anodizing. And unfortunately they are available as I ordered one already.

    Joe, You could sell a kidney LOL. Sick humor
    Last edited by breastroker; 02-13-2016 at 11:37 PM.

  7. #6
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    Default

    Beautiful receiver set, amazing you can get it that light!

  8. #7
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    Default

    Just got an email from the general Manager at 2A, the "Xanthos lite receivers are out at hard anodize we expect them back tomorrow".

    "We are in the process of activating the Xanthos-lite on the website, but
    already have brisk demand for these coming out of Shot Show. "

    Mine will ship this Friday, so go ahead and order from them direct as they will sell out quickly.


  9. #8
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    Default ebay titanium muzzle brake only 0.67 ounce

    Every once in a while I score on eBay. Just got a titanium 308 muzzle brake 5/8-24 thread that weighs half an ounce less than any other if the seller is correct. Half an ounce is huge when at the front of the barrel. About 0.87 ounces less than my titanium Furion brake. Looks like the Weatherby Accubrake, there have been many others that look like this with the spiral hole patterns. The good thing is it doesn't need to be clocked.

    Listed at 0.67 ounces. And only $55 with free shipping. Shipped the next morning.

    Ruger precision rifle rem 700 30 cal 5/8x24 tpi Titanium Muzzle brake .750 o.d.
    Our titanium muzzle brake is a great addition to your Ruger precision rifle, rem 700 or any rifle threaded with 5/8 x 24 tpi, With an internal parabolic taper our brake reduces recoil while not making the brake overly loud. and weighing in at .67 oz. it is great for lightweight builds. We manufacture all our parts in house! allowing us to offer our titanium accessories at unbelievable prices! military/service discount offered

    One of the things I really like is I can remove the gas block without taking off the muzzle brake!




    Last edited by breastroker; 02-15-2016 at 10:21 PM.

  10. #9
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    Here are all the lower small parts, minus pistol grip and buffer tube. Using aluminum V7 and titanium 2A parts almost 2 ounces are cut.

    My Mag "K" grip is down to 1.7 ounces by a lot of dremmil work.




  11. #10
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    Default Smoke Composites stock

    I have to say I love the Smoke Composites stock, with castle nut and end plate it weighs 3.55 ounces. I love it because there is no AR twang.

    It is so comfortable to shoot, even with the big bad AR 308. Depending on how the 2A receiver set is configured, I usually do not use the end plate.

    if you notice the two take down springs, one is shorty because it is configured to be used with a 4/40 set screw to hold the rear take down pin in.



 

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