WA GBBR M4 Bolt Carrier issue!

Thanh · August 2nd, 2010, 17:42

For some reason the bolt carrier locks back cocked but won't release. It does this sometimes. What is the cause of that?

I manage to get it to slide back and then I greased the shit out of it, and it still locks back after a few fires!!

I don't understand why it does this!

GZA · August 2nd, 2010, 18:59

It sounds like your problem lies in the Lower receiver. Perhaps this is a FCG or bolt-catch assembly issue, and the bolt carrier is getting caught on the hammer or something.

Thanh · August 2nd, 2010, 19:12

I found the quick fix solution is by hitting the left side of the gun with your hand and it releases it.

How do I tell what the issue is with? The gun is less then 1 month old, gamed onced and it did this after 7hrs of play.

spartan117 · August 2nd, 2010, 19:59

Quote:

Originally Posted by Thanh

I found the quick fix solution is by hitting the left side of the gun with your hand and it releases it.

How do I tell what the issue is with? The gun is less then 1 month old, gamed onced and it did this after 7hrs of play.

Are you sure its not just the bolt catch?

Thanh · August 2nd, 2010, 20:18

Quote:

Originally Posted by spartan117

Are you sure its not just the bolt catch?

I'm not sure, it actually has a high chance of being the bolt catch. If that is the case, what is the solution? replacement? or just greasing?

Eeyore · August 2nd, 2010, 20:43

When you pull back the charging handle and the bolt locks back, does the bolt release when you put the bolt catch?

SOCINCO · August 2nd, 2010, 21:40

it might be the buffer lock problem, when buffer lock it too high or too low it can cause the BCG to jam and when you tab the side of the gun it will be released, try pull the charging handle when the gun is pointing to the floor, and then pull it when it's pointing up, if pointing up jam the BCG then it's buffer lock problem.

Styrak · August 2nd, 2010, 22:01

Uh. Is your mag empty?

Rookie Ab · August 2nd, 2010, 22:09

Does the BCG go too far into the buffer tube? Might need some spacers in the buffer to shorten the travel.

spartan117 · August 2nd, 2010, 22:34

You are going to have to be more clear in order for us to help you.

Thanh · August 3rd, 2010, 00:07

Yes mag is empty, and when I hit the bolt catcher it does nothing. Like I said it gets stuck pulled back. I have to hit the gun on the side for it to release.

It works right now but once in a while it jams up, more often recently.

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August 2nd, 2010, 17:42	#1
Thanh AKA Tsquared Trader rating Join Date: Feb 2004 Location: Toronto	WA GBBR M4 Bolt Carrier issue! For some reason the bolt carrier locks back cocked but won't release. It does this sometimes. What is the cause of that? I manage to get it to slide back and then I greased the shit out of it, and it still locks back after a few fires!! I don't understand why it does this! Last edited by Thanh; August 2nd, 2010 at 18:29..

August 2nd, 2010, 22:01	#8
Styrak Trader rating Join Date: Jan 2007 Location: Saskatoon, SK	Uh. Is your mag empty? __________________ Airsoft Sales and Repair/Upgrade Services

August 2nd, 2010, 22:09	#9
Rookie Ab a.k.a. Kody_1 Trader rating Join Date: Apr 2007 Location: 51° 2′ 42″ N, 114° 3′ 26″ W	Does the BCG go too far into the buffer tube? Might need some spacers in the buffer to shorten the travel. __________________ AKA : Rookie, on a few other boards.

August 2nd, 2010, 18:59	#2
GZA Trader rating Join Date: Oct 2007 Location: Toronto, Ontario	It sounds like your problem lies in the Lower receiver. Perhaps this is a FCG or bolt-catch assembly issue, and the bolt carrier is getting caught on the hammer or something.

August 2nd, 2010, 19:12	#3
Thanh AKA Tsquared Trader rating Join Date: Feb 2004 Location: Toronto	I found the quick fix solution is by hitting the left side of the gun with your hand and it releases it. How do I tell what the issue is with? The gun is less then 1 month old, gamed onced and it did this after 7hrs of play.

August 2nd, 2010, 21:40	#7
SOCINCO formerly kamatokai Trader rating Join Date: Jun 2008 Location: ottawa	it might be the buffer lock problem, when buffer lock it too high or too low it can cause the BCG to jam and when you tab the side of the gun it will be released, try pull the charging handle when the gun is pointing to the floor, and then pull it when it's pointing up, if pointing up jam the BCG then it's buffer lock problem.

August 2nd, 2010, 22:34	#10
spartan117 Trader rating Join Date: Sep 2007 Location: Vancouver B.C	You are going to have to be more clear in order for us to help you.

August 3rd, 2010, 00:07	#11
Thanh AKA Tsquared Trader rating Join Date: Feb 2004 Location: Toronto	Yes mag is empty, and when I hit the bolt catcher it does nothing. Like I said it gets stuck pulled back. I have to hit the gun on the side for it to release. It works right now but once in a while it jams up, more often recently.

WA GBBR M4 Bolt Carrier issue!

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