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10/20/2017 1:01:18 AM
9/22/2017 12:11:25 AM
Posted: 8/28/2005 11:10:18 AM EDT
I have always wanted to mount a shotgun under an ar but I am sure there are laws which stop this from happening.Does anyone know what the laws are?
Link Posted: 8/28/2005 11:26:09 AM EDT
Probably the barrel would be too long, unless you wanted to register it as a SBR/SBS with the ATF.

Billy from Predator had one, but it was definately cut too short. 18" is the legal limit. Once you add the receiver to that and mount it under you barrel, you can see how this would stick out way farther than the standard 20" barrel.
Link Posted: 8/28/2005 11:31:13 AM EDT
[Last Edit: 8/28/2005 11:40:01 AM EDT by MrScaramanga]
google up masterkey for a photo.
Link Posted: 8/28/2005 12:26:13 PM EDT
OK, so the masterkey idea has a huge "cool" factor, but doesn't it put enormous stress on the AR/M16?

- BG
Link Posted: 8/28/2005 12:33:12 PM EDT
The concept has proven to be impractical.
Link Posted: 8/28/2005 1:19:55 PM EDT
The word is that it's easier for an operator to carry a dedicated breaching shotgun and and rifle (without a boat anchor attached).
Link Posted: 8/28/2005 1:33:00 PM EDT
[Last Edit: 8/28/2005 1:34:58 PM EDT by rcoers]

Originally Posted By no1gunnrunner:
I have always wanted to mount a shotgun under an ar but I am sure there are laws which stop this from happening.Does anyone know what the laws are?



Unless you have one w/ a 18" barrel, you're going to be SOL in Indiana. State law does not allow for short-barreled shotguns in Indiana.
Link Posted: 8/28/2005 5:57:40 PM EDT
Personally I think it's a ridiculous idea.
Link Posted: 8/28/2005 6:02:17 PM EDT
http://img357.imageshack.us/img357/5788/kmcmasterkey8bv.th.jpg

I think it would be good for doors and locks if you were clearing rooms.
Link Posted: 8/28/2005 6:15:59 PM EDT

Originally Posted By KillAgain:
img357.imageshack.us/img357/5788/kmcmasterkey8bv.th.jpg

I think it would be good for doors and locks if you were clearing rooms.



That looks extremely awkward. I think I agree with mongo's heresay that it would be easier to just carry a dedicated breaching gun. M203 looks awkward to me, and that seems even worse.
Link Posted: 8/28/2005 6:34:10 PM EDT
What sucks is that they alway put a pump under there, if it was a semi auto shot gun.............Then I could pump fire both AT THE SAME TIME!


I think I'll end up making my own.
Link Posted: 8/28/2005 7:56:49 PM EDT
bump fire?
Link Posted: 8/28/2005 8:15:32 PM EDT
I have handled one, and they are ridiculously heavy. The balance is horrible, and they are bulky and akward to operate. The M203 is lighter it seemed (been years since I handled either one).

Sling a short 870 or 500 with a pistol grip if you need door breaching capability. Carry around 50 lb dumbells if you want to carry something heavy to get your arms bigger.
Link Posted: 8/29/2005 4:16:18 AM EDT

Originally Posted By KillAgain:
I think it would be good for doors and locks if you were clearing rooms.

Yeah, you'd think that until you had to hump one around all day.

Lord knows how many doors our troops have to breach on a daily basis and I have yet to see a single picture that has a Masterkey in it.
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