Airsoft Canada
https://www.replicaairguns.ca/airsoft

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

Warning on the VFC bolt release

:

Doctor's Corner

Reply
 
Thread Tools
Old March 16th, 2010, 13:59   #1
Jackarutu
 
Join Date: Sep 2009
Location: louisiana
Send a message via Skype™ to Jackarutu
Warning on the VFC bolt release

If anyone owns one of the new VFC M16/M4 weapons with the lock back bolt and actual working bolt release they need to be aware that when the upper receiver is separated from the lower they should never press the bolt release because when the receivers are separated it allows the bolt release to travel too far and this causes the spring to jump out of alignment with the cam that locks the bolt back. If this happens the gear box will have to be removed from the lower receiver to allow the spring to be repositioned.
__________________
I must not fear. Fear is the mind-killer. Fear is the little-death that brings total obliteration. I will face my fear. I will permit it to pass over me and through me.

Last edited by Jackarutu; March 16th, 2010 at 17:05..
Jackarutu is offline   Reply With Quote
Old March 16th, 2010, 14:05   #2
Danke
 
Danke's Avatar
 
Join Date: Oct 2007
Location: Danger Zone
Is that with the Ambi one only? I haven't noticed this on my 416.
__________________
Airsoft, where nothing is hurt but feelings.
Danke is offline   Reply With Quote
Old March 16th, 2010, 15:56   #3
Jackarutu
 
Join Date: Sep 2009
Location: louisiana
Send a message via Skype™ to Jackarutu
Danke,

On the SR15 VFC labels the left side bolt release as part number SR15-CM-20 Left Bolt catch set. On the ambi ones the other side is listed as SR15-CM-14 right bolt catch set. Because I haven’t seen any of the ambi ones I can’t say if the right side can also cause the same trouble if it is pushed fully while the receivers halves are separated or not. The MK18 Mod 0 would be an example of the series I was addressing in my warning. I’m not sure about the ambi one because I haven’t studied those yet. But I think their all the same design as regards the cam that locks the bolt back which in the case of the VFC design is attached to the gearbox (unlike the King Arms type that is part of the lower receiver). This would also apply to the echo1 Platinum Edition or any other weapon with a lock back bolt made by VFC in the MLL series.

So far I’ve had 16 of these brought in to get the spring re-formed and replaced back between the gearbox and the cam. The problem is nothing stops the cam from travelling past the point of where the spring can bend and pull out from between the cam and the gearbox. When the receivers are assembled you can only push the bolt release less than 1/16 of an inch in traveler but with the receiver halves separated the release can be pushed 3/16 of an inch which is enough to allow the problem as I outlined above. This problem won’t stop the weapon from firing but the bolt will no longer lock back until the weapon is dissembled and the parts resembled in the correct order.
__________________
I must not fear. Fear is the mind-killer. Fear is the little-death that brings total obliteration. I will face my fear. I will permit it to pass over me and through me.
Jackarutu is offline   Reply With Quote
Old March 16th, 2010, 16:34   #4
Danke
 
Danke's Avatar
 
Join Date: Oct 2007
Location: Danger Zone
Good thing I don't like figiting with it when it's in pieces. After about the fourth time the charm of taking the mechbox out fades.
__________________
Airsoft, where nothing is hurt but feelings.
Danke is offline   Reply With Quote
Old March 16th, 2010, 16:39   #5
Thenooblord
Can't fix my own guns. Willing to fix yours.
 
Thenooblord's Avatar
 
Join Date: Jan 2009
Location: Sherwood Forest
Send a message via MSN to Thenooblord
get an AUG, then its never a chore to take the mechbox out xD
__________________

Words to live by
Quote:
Originally Posted by Kid View Post
The apartment I am in right now costs $100 a month.
My average spending on food per day is less than $4.
My airsoft spending in the last month and a half has totaled over $1400.
They're called priorities. Get yourself some.
Thenooblord is offline   Reply With Quote
Old March 16th, 2010, 18:59   #6
Sha Do
 
Sha Do's Avatar
 
Join Date: Jun 2003
Location: No where to be seen......Hillsburgh
Quote:
Originally Posted by Thenooblord View Post
get an AUG, then its never a chore to take the mechbox out xD
...the same with the P90 and half a dozen other guns.....but that has nothing to do with the thread.

Thanks for the insight Jackarutu. Good info.

SHA DO
Sha Do is offline   Reply With Quote
ReplyTop


Go Back   Airsoft Canada > Discussion > Doctor's Corner

Bookmarks


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
https://www.replicaairguns.ca/airsoft

All times are GMT -4. The time now is 02:45.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2025, vBulletin Solutions Inc.