Under Barrel Grenade Launcher for the MAR

This is an Instructable for an under-barrel grenade launcher for my MAR. It launches grenades which throw fragments around the area of impact upon impact.

Note: The grenade launcher has a block trigger but since this is more of a secondary, special, or back-up weapon I guess it doesn't matter as much.

More Instructables by me.

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Step 1: Making the Components

Make the following:

Picture 1: Make 2 (Lets for now call these part A).
Picture 2: Make 1 (Lets call this part B).
Picture 3: Make 1 (Lets call this part C).
Picture 4: Make 1.
Picture 5: Make 1.

aleceatsfood says: Dec 15, 2010. 6:38 PM

NICE!

Masterdude (author) in reply to aleceatsfoodDec 16, 2010. 4:17 PM

Thanks.

aleceatsfood says: Feb 20, 2011. 4:23 PM

here it is, its on a crossbow and the 3rd pic is of shotgun ammo the 4th pic os of grenade ammo! thanks it cool. I have to add more to the cross bow to make it stay stedy but here...

Masterdude (author) in reply to aleceatsfoodFeb 21, 2011. 1:08 PM

Nice

aleceatsfood in reply to MasterdudeFeb 21, 2011. 2:28 PM

thanks!

Fred the evil puppet says: Jul 26, 2010. 9:19 AM

why did i make this and it never worked?

Masterdude (author) in reply to Fred the evil puppetJul 27, 2010. 6:32 AM

What do you mean that "it" never worked? Did the grenade not shoot out? Did it not fragmentate? Did the trigger not want to move? Or something else? The design is so simple it should almost never fail totally.

Fred the evil puppet in reply to MasterdudeJul 27, 2010. 12:28 PM

it was the gun itself. sorry, i meant to say the gun. it just never fired. i know i built it 100% correct.

Masterdude (author) in reply to Fred the evil puppetJul 28, 2010. 5:03 AM

Why didn't it fire? Did you use rubberbands or did it just jam constantly?

Fred the evil puppet in reply to MasterdudeJul 28, 2010. 9:33 AM

it jammed

Masterdude (author) in reply to Fred the evil puppetJul 29, 2010. 5:51 AM

Maybe the ram rod when the trigger is pushed aside hit the white connector? In this case you just push it up until it goes through the hole in the white connector.

Fred the evil puppet in reply to MasterdudeJul 29, 2010. 7:57 AM

ah. thanks. now it shoots!

Masterdude (author) in reply to Fred the evil puppetJul 30, 2010. 7:26 AM

You're welcome.

Fred the evil puppet says: Jul 28, 2010. 9:30 AM

it jammed.

GAG3 says: Apr 15, 2010. 12:56 PM

MAR BAR!

Masterdude (author) in reply to GAG3Apr 15, 2010. 3:34 PM

What?

GAG3 in reply to MasterdudeApr 15, 2010. 3:46 PM

M bar?

Masterdude (author) in reply to GAG3Apr 16, 2010. 4:44 PM

Ummm....
Are you just referring to my guns or are you trying to make a joke? If it is supposed to be a joke, how about explaining it or using more words so it can be understood?

GAG3 in reply to MasterdudeApr 16, 2010. 8:41 PM

Referring to YOUR guns

Masterdude (author) in reply to GAG3Apr 17, 2010. 2:03 PM

Okay.

GAG3 in reply to MasterdudeApr 17, 2010. 2:04 PM

I built it...IT'S AWESOME...Thank's dude.:)

Masterdude (author) in reply to GAG3Apr 19, 2010. 3:28 PM

Hey, I'm going to post a new gun soon. It's the MHMG. It has a hi-cap mag, bi-pod, and can have straps as shown. Here's a preview of it:

Mr. Muggle says: Dec 9, 2009. 12:10 PM

I was the first one to build a MAR: www.instructables.com/id/The-MAR-Tank/

DJ Radio says: Dec 7, 2009. 4:42 PM

These kinds of "Grenade launchers" are just another excuse to post lame block triggers.

Masterdude (author) in reply to DJ RadioDec 8, 2009. 2:24 PM

I do admit that block triggers aren't really good and that true triggers are a lot better but to make a working grenade launcher small enough to fit under the barrel and look more-less realistic I had to use a block trigger.