40mm tubes and breaching shotguns
- Prince Yamato
- Silent But Deadly
- Posts: 192
- Joined: Thu Jan 15, 2009 12:55 am
40mm tubes and breaching shotguns
How do these devices, when mounted to an AR, not deform the receiver, barrel, or rail mounts with their recoil? I always thought it would be cool to add one to my AR, but I keep imaging the recoil enlarging the receiver holes or ripping off the rails. Does this ever happen?
- CanOfWhooppass
- Silent But Deadly
- Posts: 482
- Joined: Thu Dec 10, 2015 3:03 pm
- Location: South Florida
Re: 40mm tubes and breaching shotguns
If they had enough recoil to damage the mount, they would damage the shooter as well. 40mm seems like a monster, it does shoot a heavy projectile but velocity is low and it feels more like a shove than a sharp snap. Think about how small those screws are that hold a scope, rings and mount onto a magnum rifle.
I don't know all the ways all these mount up, but if a little research on your desired model dosnt show problems, I wouldn't worry about it.
I don't know all the ways all these mount up, but if a little research on your desired model dosnt show problems, I wouldn't worry about it.
It's not a silencer, it's a can of whoopass!
Re: 40mm tubes and breaching shotguns
I can't speak to the breaching shotguns, but I can to the grenade launchers:Prince Yamato wrote:How do these devices, when mounted to an AR, not deform the receiver, barrel, or rail mounts with their recoil? I always thought it would be cool to add one to my AR, but I keep imaging the recoil enlarging the receiver holes or ripping off the rails. Does this ever happen?
While the projectiles are heavy, the velocity is low. M781 chalk rounds run about 240 FPS. The HE grenades, and pretty much everything else beside crowd control stuff (rubber balls, foam batons etc) run at the same low velocity. They produce less recoil than a 12 gauge according to my shoulder.
Re: 40mm tubes and breaching shotguns
40mm and 12ga underbarrel mounts don't have anywhere near enough recoil to be an issue whatsoever.
- whiterussian1974
- Silent But Deadly
- Posts: 2857
- Joined: Sat Sep 28, 2013 11:37 pm
- Location: On 8th line of eye chart.
Re: 40mm tubes and breaching shotguns
This was my favorite answer. Flesh is FAR less tolerant than 6061Al. Even if hole fit is sloppy.CanOfWhooppass wrote:If they had enough recoil to damage the mount, they would damage the shooter as well.
The Darkest Corners of Hell are reserved for those who remain Neutral!-Dante
The Death of One is a Tragedy, a million only a statistic.-Stalin
silencertalk.com/forum/viewtopic.php?f=10&t=135314
The Death of One is a Tragedy, a million only a statistic.-Stalin
silencertalk.com/forum/viewtopic.php?f=10&t=135314
-
- New Member
- Posts: 8
- Joined: Tue Mar 22, 2016 1:39 pm
Re: 40mm tubes and breaching shotguns
Never used an undermounted, but a standalone 40mm launcher feels like a 12ga except a little more smooth. Kind of like .40 cal to a .45. More power behind it but not too snappy. Depends on the round you're using too. Some of the crowd control stuff with a bunch of small projectiles is pretty sissy to shoot.
Re: 40mm tubes and breaching shotguns
I had 2 LMT 40mm.
One rail mounted, one barrel mounted.
I sold the rail mounted one. I could not find a rail that would take abuse of repetitive use. Now I was actually using the thing probably 25 to 30 chalk and other rounds at a time, but all the free floated rails I had would bend over time.... Larue and KAC included.
The barrel mounted one is solid as a tank. Perfect on a 14.5 " LMT barrel. Also great with the Stand-alone KAC mount.
One rail mounted, one barrel mounted.
I sold the rail mounted one. I could not find a rail that would take abuse of repetitive use. Now I was actually using the thing probably 25 to 30 chalk and other rounds at a time, but all the free floated rails I had would bend over time.... Larue and KAC included.
The barrel mounted one is solid as a tank. Perfect on a 14.5 " LMT barrel. Also great with the Stand-alone KAC mount.