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Removing a CA M15A4 CQBR flash hider

#1 User is offline   Sgt. Kinn 

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Posted 08 February 2010 - 09:03 PM

Hey guys,

I am having one helluva time removing the flash hider on my CA M4. I removed the small set screw, and am turning it to the right (also tried to the left, just to be sure) and this thing wont budge. I red about there being glue holding it in, and tried tricks such as soaking it in lighter fluid, boiling water, and then putting it in a vice, getting some industrial strength screw un-fastener and a large monkey wrench, and that didnt even work. I got this in Sept. 09 second hand, it the previous owner didnt use it much, so I assume its fairly new. I red some place that CA started using new glue on these as per import regulations. Does anyone know what to do?

#2 User is offline   J0KER 

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Posted 08 February 2010 - 09:06 PM

How long did you let it sit in boiling water for? You need to do it for at least 2 minutes for it to come off easily.

#3 User is offline   Unibomber 

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Posted 08 February 2010 - 09:11 PM

Here's my method.

Hang gun from paracord upside-down so that the flash-hider is dipped into a cup of nail polish remover. DONT dip it so deep that it wears away at the outer-barrel itself, as my CA M4 barrel paint chips away easily)

After 30 minutes, remove gun.

Stick a screwdriver through a slot in the flash hider and out the other side through an opposite slot.

Twist hard to the RIGHT and it should "pop" the glue mold then easily twist off.

(If it's a cheap plastic flashhider then the screw driver may break the slots, you can just twist it off with pliars instead. And if you're trying to keep the flashhider for later, wrap it in a rag first instead of putting the metal pliars straight on the plastic)



***instead of hanging the gun, you can always balance the gun into a cup with support against a table, and add nail poslish remover into the cup carefully

This post has been edited by Unibomber: 08 February 2010 - 09:18 PM


#4 User is offline   Sgt. Kinn 

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Posted 08 February 2010 - 09:49 PM

I boiled it for over 2 minutes.

Ill have to try that unibomber.

#5 User is offline   Madkows 

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Posted 09 February 2010 - 12:45 AM

IT'S CALLED A PUSH-UP KINN, YOU SHOULD TRY IT SOMETIME.


Normally I carefully drip Goof Off down into the threads
if said procedures above don't work. Then I grab some pliers or channel-locks
at the base of the flash hider (Before the slots) and throw some elbow grease into it.

It's worked with 2 CA's so far. :]

#6 User is online   Eagle2 

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Posted 09 February 2010 - 08:47 AM

What I usually do is to hold a hair dryer to it for about 6-10 minutes and then pry in off using the screwdriver method Unibomber was talking about, however I have broken a flash hider like that before so I'd be careful. Also the hair dryer didn't work with my M14 flash hider so it's certainly not fool proof, but it's worth a shot.

#7 User is offline   Sgt. Kinn 

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Posted 10 February 2010 - 08:44 PM

I took it to home depot, and they were able to remove it.

They took two pipe wrenches, put one on the flash hider, one on the barrel and pulled in opposite directions. And it was reverse threaded and glued on. I guess that the force applied in the two reverse directions by the two wrenches was more than having one wrench pulling the flash hider in one direction.

Mods, feel free to close this thread if you wish. Thanks for your input everyone.

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