Airsoft Canada
http://triggerairsoft.com/shop/

Go Back   Airsoft Canada > Discussion > Airsoft Guns Discussion
Home Forums Register Gallery FAQ Calendar
Retailers Community News/Info International Retailers IRC Today's Posts

Stop a gas gun blow back function during semi single shot

:

Airsoft Guns Discussion

Reply
 
Thread Tools
Old May 4th, 2016, 22:03   #1
N_Force
 
N_Force's Avatar
 
Join Date: Oct 2006
Location: Toronto, Ontario
Stop a gas gun blow back function during semi single shot

These day I'm bored and would like to ask and do something stupid, anyone could give me ideas or even answers before I try it.

If I blocked a WE M4 bolt to stop it blowing back, set it to semi auto and fired single shot, what do you think it would happen? Has anyone tired it? Or something like this?
__________________
aka Uncle

N_Force is offline   Reply With Quote
Old May 4th, 2016, 22:14   #2
pestobanana
Squid Porn Superstar, I love the tentacles!
 
pestobanana's Avatar
 
Join Date: Nov 2008
Location: Richmond Hill and Waterloo, Ontario
All of your gas would spray out and freeze your gun.
pestobanana is offline   Reply With Quote
Old May 4th, 2016, 22:31   #3
e-luder
 
e-luder's Avatar
 
Join Date: Aug 2011
Location: Centre Mass
^what he said...


Your bolt actions the hammer and the hammer (uncharged) prevents your firing pin from actioning; thus will keep your blowoff valve open until gas runs out (or until you charge the gun via charging handle or drop the mag).

Lamen's terms: The firing pin will not charge (then blowoff valve pushes back on the firing pin) until it is "allowed" room to do so. It can't charge if the hammer is isn't charged...

im confused by what i just said.

You can see this happening yourself. It's happeninng when your mag runs low on gas and can't action the bolt fully anymore. The system just vents gas until there is no more or until you manually charge it or until you drop the mag. So, you can try it yourself. try it on a pistol or somthing. It's the same principle and same result...
__________________
"May you fight with the strength of ten full grown men."

Last edited by e-luder; May 4th, 2016 at 22:43..
e-luder is offline   Reply With Quote
Old May 4th, 2016, 23:19   #4
Wilkie
 
Wilkie's Avatar
 
Join Date: Apr 2013
Location: Brandon, Mb
That sounds like something akin to dividing by zero to me.
Wilkie is offline   Reply With Quote
Old May 4th, 2016, 23:52   #5
pestobanana
Squid Porn Superstar, I love the tentacles!
 
pestobanana's Avatar
 
Join Date: Nov 2008
Location: Richmond Hill and Waterloo, Ontario
What ESL-luder meant was

The hammer hits the valve knocker which opens the valve. The knocker does not allow the valve to close until the slide or bolt moves back to cock the hammer. Until then, the valve remains open.
pestobanana is offline   Reply With Quote
Old May 4th, 2016, 23:55   #6
e-luder
 
e-luder's Avatar
 
Join Date: Aug 2011
Location: Centre Mass
^ ye....yeah...THAT's it

What's the answer to a divide by zero?
__________________
"May you fight with the strength of ten full grown men."
e-luder is offline   Reply With Quote
Old May 4th, 2016, 23:57   #7
MultipleParadox
 
MultipleParadox's Avatar
 
Join Date: Feb 2011
Location: St-Hubert, Qc
42?
__________________
Quote:
Originally Posted by Brian McIlmoyle View Post
Real life comparison,

GBBR- bang bang -- Giggle

AEG-- merrrzip merrzip -- meh
MultipleParadox is offline   Reply With Quote
Old May 5th, 2016, 00:02   #8
e-luder
 
e-luder's Avatar
 
Join Date: Aug 2011
Location: Centre Mass
...(I knew that)....
__________________
"May you fight with the strength of ten full grown men."
e-luder is offline   Reply With Quote
Old May 5th, 2016, 03:02   #9
sundae_1021
 
sundae_1021's Avatar
 
Join Date: Jul 2010
Location: Vancouver BC
it's not gonna shoot at all or load a round in the chamber because you block the bolt from moving back.
__________________
MAGDALO

HATERS GONNA HATE
sundae_1021 is offline   Reply With Quote
Old May 5th, 2016, 09:11   #10
N_Force
 
N_Force's Avatar
 
Join Date: Oct 2006
Location: Toronto, Ontario
Thank you for those experience expert answers, so if blocking the bolt, the trigger would not be having blow back to release the firing pin from release valve and dump all the gas at once, that's how the wat gbb design for - need blow back to reset, since I've got a bit attention, I have next question. I tuned up my gbb as of my hobby, but hardly ever get into the design theory. I would like to know how's the design for a "non blow back" (pistol mostly, oay be rifle)working? Comparing to semi and auto gbb?
__________________
aka Uncle


Last edited by N_Force; May 5th, 2016 at 12:06..
N_Force is offline   Reply With Quote
Old May 5th, 2016, 10:22   #11
Drake
E-01
 
Drake's Avatar
 
Join Date: Dec 2001
Location: Montreal, QC
An NBB works in a similar fashion except the knocker pushed the gas valve open (inertia) and gas pressure and a return spring on the valve allow it to close again.

The main difference with a GBB is that in a GBB the knocker is being held in place until the action cycles.

In both cases the gas will vent when pressure drops too much (empty mag, cold weather) but for the GBB its because the action can't cycle and for an NBB its because there isn't enough pressure for the valve to close itself.
__________________
Drake is offline   Reply With Quote
Old May 5th, 2016, 12:13   #12
N_Force
 
N_Force's Avatar
 
Join Date: Oct 2006
Location: Toronto, Ontario
Thanks Drake. So the nbb function is based on a return spring and gas pressure (push back) to cut off and stop the gas flow, like revolver or SAA hammer design, right?
__________________
aka Uncle

N_Force is offline   Reply With Quote
Old May 5th, 2016, 12:23   #13
Danke
 
Danke's Avatar
 
Join Date: Oct 2007
Location: Danger Zone
The NBB is like a DA revolver. Thus a heavy shitty trigger pull.
__________________
Airsoft, where nothing is hurt but feelings.
Danke is offline   Reply With Quote
Old May 7th, 2016, 07:38   #14
Ricochet
How much sand CAN you fit in your vagina!?
 
Join Date: Feb 2008
Location: North Delta, BC (Greater Vancouver)
What's your end game, silence?
__________________
I have developed a new sport called Airhard. Pretty much the same as Airsoft, except you have to maintain an erection...
Ricochet is offline   Reply With Quote
Old May 7th, 2016, 10:14   #15
Bellerophon
 
Bellerophon's Avatar
 
Join Date: Aug 2012
Location: Guelph, On
Quote:
Originally Posted by N_Force View Post
If I blocked a WE M4 bolt to stop it blowing back, set it to semi auto and fired single shot, what do you think it would happen?
The best you could do is buy or make a buffer that will short stroke the travel of the bolt, as in this video (the buffer is in this case the brass part visible 35 seconds in).
__________________
Airsoft is where expensive things go to die.
Bellerophon is offline   Reply With Quote
ReplyTop


Go Back   Airsoft Canada > Discussion > Airsoft Guns Discussion

Bookmarks

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


Airsoft Canada
http://triggerairsoft.com/shop/

All times are GMT -4. The time now is 03:57.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.