Read the Beforeitsnews.com story here. Advertise at Before It's News here.
Profile image
Story Views
Now:
Last hour:
Last 24 hours:
Total:

The Army has 3D printed a working 40mm grenade launcher they call Rambo (PHOTOS)

% of readers think this story is Fact. Add your two cents.


The launcher is replicated 1:1 scale from the M203A1– with a few tweaks to include an AFG. (Photos: Sunny Burns/U.S.Army)

RAMBO (Rapid Additively Manufactured Ballistics Ordnance) was made on a 3D printer after a six-month effort– and has even fired 3D printed grenades to prove it works.

Produced in a joint collaboration between the U.S. Army Research, Development and Engineering Command, the U.S. Army Manufacturing Technology Program and America Makes, the group used additive manufacturing techniques to craft a direct copy of the M203A1 40mm grenade launcher commonly mounted under the M16/M4 series rifles.

Every part of the weapon, save for the springs and some fasteners, was sintered in aluminum or printed in 4340 alloy steel in 35 hours of production.

RAMBO, top, and the standard M203A1, bottom

An M203A1 grenade launcher consists of about 50 parts, 90 percent of which the ARDEC team were able to 3D print for their weapon

So what do you fire from a 3D printed bloop gun? 3D printed grenades, that’s what.

While the M781 low-velocity 40mm training grenade uses a zinc case which they couldn’t print, the team tried 3D printing grenade bodies in aluminum and steel then settled on using a wax printer to make a mold they could pour molten zinc into to cast the projectile bodies.

The team tried several different printed versions of the M781 grenade

The neat thing is that the process actually cost, “tens of thousands of dollars less than identical components created with standard production methods.”

But does it work?

Well, they shot RAMBO 15 times and found the “test shots did not produce any signs of degradation, and the rounds’ muzzle velocities were within 5% of the velocities achieved by standard launchers.”

A standalone kit complete with a printed adjustable buttstock, mounts, and other modifications to include an angled forward grip was printed after consulting paratroopers of the 82nd Airborne Division who looked at the prototype– another rapidly applied lesson translated to production of the finished launcher.

[ ARDEC via ASC.Army.mil ]

The post The Army has 3D printed a working 40mm grenade launcher they call Rambo (PHOTOS) appeared first on Guns.com.



Source: http://www.guns.com/2017/03/08/the-army-has-3d-printed-a-working-40mm-grenade-launcher-they-call-rambo-photos/


Before It’s News® is a community of individuals who report on what’s going on around them, from all around the world.

Anyone can join.
Anyone can contribute.
Anyone can become informed about their world.

"United We Stand" Click Here To Create Your Personal Citizen Journalist Account Today, Be Sure To Invite Your Friends.

Please Help Support BeforeitsNews by trying our Natural Health Products below!


Order by Phone at 888-809-8385 or online at https://mitocopper.com M - F 9am to 5pm EST

Order by Phone at 866-388-7003 or online at https://www.herbanomic.com M - F 9am to 5pm EST

Order by Phone at 866-388-7003 or online at https://www.herbanomics.com M - F 9am to 5pm EST


Humic & Fulvic Trace Minerals Complex - Nature's most important supplement! Vivid Dreams again!

HNEX HydroNano EXtracellular Water - Improve immune system health and reduce inflammation

Ultimate Clinical Potency Curcumin - Natural pain relief, reduce inflammation and so much more.

MitoCopper - Bioavailable Copper destroys pathogens and gives you more energy. (See Blood Video)
Oxy Powder - Natural Colon Cleanser!  Cleans out toxic buildup with oxygen! 
Nascent Iodine - Promotes detoxification, mental focus and thyroid health.
Smart Meter Cover -  Reduces Smart Meter radiation by 96%!  (See Video)

Report abuse

    Comments

    Your Comments
    Question   Razz  Sad   Evil  Exclaim  Smile  Redface  Biggrin  Surprised  Eek   Confused   Cool  LOL   Mad   Twisted  Rolleyes   Wink  Idea  Arrow  Neutral  Cry   Mr. Green

    MOST RECENT
    Load more ...

    SignUp

    Login

    Newsletter

    Email this story
    Email this story

    If you really want to ban this commenter, please write down the reason:

    If you really want to disable all recommended stories, click on OK button. After that, you will be redirect to your options page.