Shooting a 3.8-Pound Titanium AR: The Battle Arms Gen. 2 O.I.P. – SHOT Show 2019

At just 3.8 lbs., the O.I.P. shoots surprisingly well thanks to the intentionally balanced design and the Thumper brake.

Battle Arms’ generation 2 O.I.P. weighs just 3.8 pounds, and it shoots really well. It’s small and light and low profile. Weight was cut by using titanium and making cutouts, but nothing is exposed that will allow the action to get dirty. “Ounces Is Pounds” is a true saying, and Battle Arms has done a lot of work to find all the ounces that can be spared to make this gun as light as possible.

Carbon fiber grip. Ounces is pounds.

Do you really need a full-length Picatinny rail? Ounces is pounds.

Machined carbon fiber handguard. Ounces is pounds.

Titanium parts: bolt catch, gas block, muzzle brake, bolt carrier, grip screw, pivot and takedown pins, stock screw.

Do you really need a T-shaped charging handle? Nah, a J-shape works fine. Scallops on the upper. Ounces is pounds.

But it’s not just lightweight. They’ve developed the titanium “Thumper” muzzle brake to keep the barrel flat, and you’ll see in the video that even at full auto it does a terrific job. Battle Arms’ O.I.P. Gen 2 is in production, but they completely sold out the first run so you’ll have to wait a few weeks for yours to arrive. MSRP is $3,299.

The Thumper has two ports on top set at an angle on the corners, and it works well.

The titanium Thumper muzzle brake.

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About the author: Levi Sim is an avid hunter, and an increasingly avid shooter. He strives to make delicious and simple recipes from the game he kills. He makes a living as a professional photographer, writer, and photography instructor. Check out his work and he’d love to connect on Instagram: @outdoorslevi

{ 9 comments… add one }
  • Namer September 8, 2021, 6:08 pm

    I’d like to see how it holds up under use. Titanium is stronger than steel but softer.

  • Alex April 28, 2020, 12:54 am

    Wow. Really nice. Have a very similar set up including receiver set, takedown pins, safety select and possibly rail if that’s a smokes rail, however weighing in at under 4 lbs, I’ve got a rubber grip, stock A2 birdcage (for now until I get that titanium comp on your setup) 14.5” barrel, 12” smokes rail, smokes stock a/ cheek riser, receiver is NOT hollowed in the mag well and a full length pitcanny rail for use ability. I still have to install a titanium lower parts kit. This is an impressive build, but I would hint at making it much more versatile with a full rail, backup sights, and a stock that can be better suited for all shooters by avoiding such a small diameter stock. Fantastic build however, but still room to shed a few ounces.

  • Stormie February 9, 2019, 2:52 am

    They should have done a carbon fiber wrap barrel too and saved a bunch more weight, like what Christensen Arms does on their bolt rifles.

  • Charles A. Valenzuela February 8, 2019, 1:41 am

    Wow, this is really great! Especially with a 5-round magazine loaded with 40g lightweight ammo. On the other hand, when I load it with a D-60 drum magazine and 60 rounds of 77g ammo, it is. . . . . . not all that much different from any other AR. Great experiment in lightweight materials though . . . .

  • Peter Brown February 7, 2019, 7:29 pm

    Ambi safety but no ambi bolt catch which is understandable given emphasis on weight reduction. Titanium can be a nightmare to work with. Its msrp is reasonable if accurate. I wish I needed it.

  • ww February 7, 2019, 1:00 pm

    Wonderful. I’ll buy one of these about the time I pay $4500 for a Tactical Supergrade again.
    For now, I’ll be happy with my 7″ 1911 and my gold cerakoted Glock 26 with pinky extension mag and fiber optic sights. And an extra ten grand lying around.

  • Phil February 7, 2019, 11:19 am

    Ounces are pounds! I want one, but probably won’t ever buy one! Would be cool to partner with some of the new polymer cased ammo.

  • T February 6, 2019, 9:48 pm

    Space age materials in firearms. This is what takes the late 20th century designs and makes them 21 st century tools.

    Aviation Week and Space Technolgy reports that titanium is being 3D printed into airframe parts!!

    • al February 7, 2019, 9:21 am

      Well, give the silly ‘anti plastic’ boys time, they WILL post a bunch of foolish negative remarks, you can bet on it. 🙂

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