The Down Range Forum

Member Section => Tactical Rifle & Carbine => Topic started by: Jackel on August 20, 2009, 02:20:52 PM

Title: Underbarrel shotgun
Post by: Jackel on August 20, 2009, 02:20:52 PM
hay guys.

ok so i just saw a picture on the net about a under barrel shotgun


(http://www.impactguns.com/store/media/kmc_masterkey.jpg)

and was wondering if it would be worth it taking my old 870 and having it mounted underneath my AR.

in my opinion this would make a deadly combination for home defense: the sheer firepower of the 12g and the capacity of the AR would make it a great.

Will also be fun to see the guys drooling at the range  ;D

thoughts?
Title: Re: Underbarrel shotgun
Post by: tombogan03884 on August 20, 2009, 02:23:58 PM
 They have been around since the early 80's at least, like AR 12 ga. they never really seemed to catch on. A neat gizmo that is in fact an answer looking for a question.
Title: Re: Underbarrel shotgun
Post by: fightingquaker13 on August 20, 2009, 03:57:48 PM
I'm with Tom on this one. One question, Why? Why add weight to an Ar? Why ruin a perfectly good shot gun? Why would you need both? Why carry two types of ammo? Why would the shot gun do anything (except snake control) any better thant the AR? Why do you think the guys at the range would be drooling rather than giggling (actually given your background they would wait till you left before laughing ;D). Seriously, there are a hundred things I would buy, including a cat and an autographed picture of Cheney before that rig.
FQ13 who apologizes for being vague about his opion ;D
PS If it were an M-203 on the other hand..... ;D
Title: Re: Underbarrel shotgun
Post by: long762range on August 20, 2009, 04:46:34 PM
One of the characters used this set up in the movies "Predator".  It would have to be very heavy and unbalanced. 
Title: Re: Underbarrel shotgun
Post by: blackwolfe on August 20, 2009, 05:05:35 PM
I think I saw this on another thread (maybe here) that had a link to Remington police or military products that had these along with the part numbers.  The operative word here is think.  I'm getting older and suffer from bouts of CRS.
Title: Re: Underbarrel shotgun
Post by: Big Frank on August 20, 2009, 05:33:49 PM
The shotgun will still have to be 28" with a 18" barrel. That would make it akward. If you still want to mount something under the barrel, try a 37MM flaregun. Mine looks just like an M203.
Title: Re: Underbarrel shotgun
Post by: TAB on August 20, 2009, 06:46:15 PM
the only practical reason to do that is so you can use the shot gun with a breaching load for "storming" a building.  otherwise all your doing is adding wieght.
Title: Re: Underbarrel shotgun
Post by: r_w on August 20, 2009, 07:54:28 PM
If you could get an M203 and plenty of golden eggs for it, that would be worth it. 

Funny, I have never been able to find one at a gunshow ??? 

Title: Re: Underbarrel shotgun
Post by: tombogan03884 on August 20, 2009, 07:58:14 PM
I'm with Tom on this one. One question, Why? Why add weight to an Ar? Why ruin a perfectly good shot gun? Why would you need both? Why carry two types of ammo? Why would the shot gun do anything (except snake control) any better thant the AR? Why do you think the guys at the range would be drooling rather than giggling (actually given your background they would wait till you left before laughing ;D). Seriously, there are a hundred things I would buy, including a cat and an autographed picture of Cheney before that rig.
FQ13 who apologizes for being vague about his opion ;D
PS If it were an M-203 on the other hand..... ;D

FQ, The only REAL use is as TAB said, Breaching. They were mostly sold for people who lived in states that don't allow the flair guns or real M203's
I was going to say mall ninja's as that is what most of them are but if Frank has the flare gun I would assume he has an actual use for it, Bird bombs or some such.
Title: Re: Underbarrel shotgun
Post by: blackwolfe on August 20, 2009, 08:05:48 PM
FQ, The only REAL use is as TAB said, Breaching. They were mostly sold for people who lived in states that don't allow the flair guns or real M203's
I was going to say mall ninja's as that is what most of them are but if Frank has the flare gun I would assume he has an actual use for it, Bird bombs or some such.


Tom, who needs an actual use for one?  Just because is good enough.  Can't fall into that "need" trap.
Title: Re: Underbarrel shotgun
Post by: Rob10ring on August 20, 2009, 08:14:13 PM
The US Army is already using something like this. It is the M26. It was featured in Special Weapons for Military and Police a few months back.

http://www.tactical-life.com/online/special-weapons/us-armys-m26-mass-12-gauge/ (http://www.tactical-life.com/online/special-weapons/us-armys-m26-mass-12-gauge/)
(http://www.tactical-life.com/online/wp-content/uploads/2009/06/us-army-12-ga.jpg)


http://www.youtube.com/watch?v=-y5Fbk8FUYo (http://www.youtube.com/watch?v=-y5Fbk8FUYo)


Title: Re: Underbarrel shotgun
Post by: Jackel on August 20, 2009, 08:25:56 PM
or just get this so i look like the coolest kid in school

http://www.airsoftpost.com/airsoft-cocking-m203-style-pump-m4m16-series-p-28364.html (http://www.airsoftpost.com/airsoft-cocking-m203-style-pump-m4m16-series-p-28364.html)
Title: Re: Underbarrel shotgun
Post by: Combat Diver on August 22, 2009, 04:58:16 AM
As metioned the only practical use would be for breaching.  I would prefer to have a shorty slung over my shoulder then adding to M4.  If added to an M4 than you would also want to use a short barreled 870 to have the muzzle just past the A2FH.  Yes, I've been a breecher.  Another thing if you were taking fire you would probably just keep your finger on the 5.56 trigger and forget about the 870 unless you do extensive training with both.  I forgot all about the M203 trigger when I got shot at the first time and that's what I did until a lull in combat came and then I remembered the 40mm!  (was carrying a M16A2/M203 combo)  Thats why I've prefered an M79 over the M203 for the last 8 yrs.  Once under fire you have a tendency to keep engaging with the weapon in hand until it goes dry or malfuncitons.
Title: Re: Underbarrel shotgun
Post by: tombogan03884 on August 22, 2009, 10:29:21 AM
 The M203 trigger has got to be one of the most awkward triggers ever installed on a military weapon.
And I would bet the this shot gun set up is, If any thing, worse.
Title: Re: Underbarrel shotgun
Post by: MikeBjerum on August 22, 2009, 08:59:18 PM
That would be a great gun for 3-gun!

Imagine not needing to transition from rifle to shotgun or vice versa. 

I'm also thinking eliminating the need to remember counts on shot and slugs.

Practical use ... lethal vs. non-lethal.  Lethal loads in rifle and bean bags in shot gun.  Gives more officers more options.
Title: Re: Underbarrel shotgun
Post by: long762range on August 23, 2009, 12:27:37 AM
m-4:  6.9 lb
Shortened 870:  5.5 lb

Total Weight 12.4 lb

Needed:  1) Shoulder sling to keep it off the ground.
              2) pack mule to carry the ammunition.
              3) Bottle of Excederin to treat the back ache of lugging the thing around.
Title: Re: Underbarrel shotgun
Post by: Ping on August 23, 2009, 03:12:16 AM
The shotgun underneath the AR-15 serves a better purpose for self defense. Who needs or can purchase a M-203 in the civilian market?
Title: Re: Underbarrel shotgun
Post by: long762range on August 23, 2009, 10:19:22 AM
The shotgun underneath the AR-15 serves a better purpose for self defense. Who needs or can purchase a M-203 in the civilian market?

I would love to be the lawyer for the perps family in that law suit.
Title: Re: Underbarrel shotgun
Post by: tombogan03884 on August 23, 2009, 10:41:33 AM
 
The shotgun underneath the AR-15 serves a better purpose for self defense. Who needs or can purchase a M-203 in the civilian market?

I would love to be the lawyer for the perps family in that law suit.


" your honor we did not recover enough of the deceased's remains to prove a cause of death, in fact we can not be sure WHERE he died as we found parts of his head 2 rooms away from his feet, and nothing really solid in between."

WOW , and NJ thinks hollow points show malicious intent.  ;D
Title: Re: Underbarrel shotgun
Post by: Big Frank on August 24, 2009, 07:58:53 PM

" your honor we did not recover enough of the deceased's remains to prove a cause of death, in fact we can not be sure WHERE he died as we found parts of his head 2 rooms away from his feet, and nothing really solid in between."

WOW , and NJ thinks hollow points show malicious intent.  ;D

 ;D
Title: Re: Underbarrel shotgun
Post by: L.E. Keeney on August 26, 2009, 11:09:23 AM
If you go sawing on that 870 bbl without an OK from the ATF, then youve made an illegal short bbl shotgun, which will get you a prison sentence..

Be careful on that
Title: Re: Underbarrel shotgun
Post by: Jackel on August 26, 2009, 03:28:33 PM
k thanks. i decided against the idea now. more touble than its worth.

still looking for a M203 though  ;)
Title: Re: Underbarrel shotgun
Post by: long762range on August 26, 2009, 04:17:40 PM
Here you go.  The whole set up.   :)

http://gunbroker.com/Auction/ViewItem.asp?Item=138369640
Title: Re: Underbarrel shotgun
Post by: Jackel on August 26, 2009, 06:01:41 PM
great.

can somebody lend me $17,000?
Title: Re: Underbarrel shotgun
Post by: DeltaM on September 11, 2009, 10:42:17 PM
Looks kind of like the AR is humping the shotgun. :P   Maybe they are trying to end up with Buck and ball like during the civil war,  or just having a ball bucking, or balling.  Any other ideas?
Title: Re: Underbarrel shotgun
Post by: tombogan03884 on September 11, 2009, 10:59:08 PM
Looks kind of like the AR is humping the shotgun. :P   Maybe they are trying to end up with Buck and ball like during the civil war,  or just having a ball bucking, or balling.  Any other ideas?

Maybe ACORN arranged it.  ;D