Frozen Body Pin on CA M15A4

ReSpEcT · April 11th, 2009, 19:43

Hey All,

I have a Classic Army M15A4. I am trying to remove the mechbox from the assembly completely. Everything went smooth except I can't seem to punch out the last pin in the lower receiver. It is the pin in between the 2 larger pins, I believe its the body pin holding in the mechbox. See the picture below. That is not my actual photo but it shows what pin I am having trouble with. I removed everything according to mechbox.com .

I have been using an allen key and hammer to try to punch it out but it won't move. I don't want to scratch the body so I am trying to be very careful. But I have been repeatedly smashing the pin with a hammer for the past hour. Any tips? :banghead:

pin.JPG

ROAR · April 11th, 2009, 19:58

On some pins one side is bigger than the other did you try punching it out from the other side if you havnt tried that already if it may be hitting the body on the other side so again try punching it out on other side.

Denis[teamplayer] · April 11th, 2009, 20:23

also try tapping the gearbox lightly to try and better align the holes so it will be easier to knock out.

I agree with the above post, try to see if one side has the pin slightly indented and apply force on that side. find something to cover your body, this could get messy

goodluck,

jesster202 · April 11th, 2009, 20:46

All mechbox pins have a tiny taper and kind of a seraded edge on one side of the pin that's a few thousands of an inch biger to give it more friction I made my self a removal tool though and usaly the taperd side is on the side of the dust cover so I'd actualy try to get it started with a center punch and once its started enough take a hammer and use the nail remover part but place some rags under it so it dosnt mark up you body if not it probaly friction welded it self their witch is a posiblity hope this helps

hebet · April 11th, 2009, 21:06

This isn't about how to take it out, but I know some people like to glue that pin in, which is not recommended

ReSpEcT · April 11th, 2009, 22:38

OK, I got the pin out by trying the other side with more force!

Now I am unable to remove the mechbox from the lower receiver it seems when i try to take it out that the rounded rear piece close to the stock is in the way. I can't seem to take out the mechbox.

Denis[teamplayer] · April 12th, 2009, 07:10

Quote:

Originally Posted by ReSpEcT

OK, I got the pin out by trying the other side with more force!

Now I am unable to remove the mechbox from the lower receiver it seems when i try to take it out that the rounded rear piece close to the stock is in the way. I can't seem to take out the mechbox.

remove screw in buffer tube, throw it in semi, tilt it forward, and rock it out.

ReSpEcT · April 12th, 2009, 14:12

The screw in the buffer tube is already removed. When i look down it I see the mechbox and nothing else.

There are no more screws to remove according to all the guides I have read.

I have been trying to rock it out but it remains caught by rear part near the stock. See photo below.

This is not actually my photo, just pointing out that my mechbox is stuck underneath this ridge.

stuck.JPG

Nova316 · April 12th, 2009, 14:30

Try throwing it into safe, then tilt it forward and out
some mechboxes take a little bit more force to push it out
Esp if its your first time taking it apart

ReSpEcT · April 12th, 2009, 20:44

I tried putting it into safe, also tried putting it into safe then semi. I have been rocking it forward, back. Do I have to remove the selector switch? Is there some new trick on the new lineup of M15A4's?

Amos · April 12th, 2009, 21:49

Try being a little more forceful

dpvu · April 12th, 2009, 21:55

You probably just need to be a bit more forceful. I understand the fear of breaking something though. Try putting it on semi and pushing out from the part that the grip would attach to while pulling down on the body with your other hand. Once it catches on the top of the body you need to push is forward (towards the front of the gun).

ReSpEcT · April 12th, 2009, 23:52

Thanks for all the replies, but I still cannot remove the mechbox. I have tried tilting in every direction, pushing the mechbox from grip. I have used a lot of force and rocked it simultaneously but the mechbox won't come out. I've also tried all combinations on the selector switch, oddly when it is on auto it seems to not be able move as much. :banghead:

Styrak · April 13th, 2009, 00:50

Ok make a checklist. Did you remove:

- pistol grip (that's a pretty obvious one!)
- stock screw in the back of mechbox
- rear body pin
- mechbox retention pin
- mag release

ReSpEcT · April 13th, 2009, 02:40

Yes sir, everything on that list has been done!

Home	Forums	Register	Gallery	FAQ	Calendar
Retailers	Community	News/Info	International Retailers	IRC	Today's Posts

British Columbia	Alberta
BCAC	EAR
Op-For	JOC
Northern Arms Airsoft	Skunkworx Airsoft
Airsoft Kelowna	RAAT
Prince George Airsoft	Manitoba
Saskatchewan	MAA
SK Airsoft	Ontario
PDW	Airsoft Ottawa
South Sask Mercs	Snow Dragons
Quebec	1st Ranger Platoon
PQAC	Wolfpack Tactical
1st Pathfinders Regiment	TTAC3
Quebec Airsoft
MTX Airsoft	Atlantic
FAQc	Atlantic Airsoft

April 11th, 2009, 19:43	#1
ReSpEcT Trader rating Join Date: May 2008 Location: London, Ontario	Frozen Body Pin on CA M15A4 Hey All, I have a Classic Army M15A4. I am trying to remove the mechbox from the assembly completely. Everything went smooth except I can't seem to punch out the last pin in the lower receiver. It is the pin in between the 2 larger pins, I believe its the body pin holding in the mechbox. See the picture below. That is not my actual photo but it shows what pin I am having trouble with. I removed everything according to mechbox.com . I have been using an allen key and hammer to try to punch it out but it won't move. I don't want to scratch the body so I am trying to be very careful. But I have been repeatedly smashing the pin with a hammer for the past hour. Any tips? :banghead: pin.JPG __________________ Classic Army M15A4 - Stock

April 11th, 2009, 19:58	#2
ROAR Trader rating Join Date: Jul 2008 Location: Edmonton, AB	On some pins one side is bigger than the other did you try punching it out from the other side if you havnt tried that already if it may be hitting the body on the other side so again try punching it out on other side. __________________ The only reason your conscious right now is because I dont want to carry you. G&P Armalite M4 Custom AK74 Toyko Marui MP5 Glock 23

April 11th, 2009, 20:46	#4
jesster202 Trader rating Join Date: Dec 2007 Location: London Ontario	All mechbox pins have a tiny taper and kind of a seraded edge on one side of the pin that's a few thousands of an inch biger to give it more friction I made my self a removal tool though and usaly the taperd side is on the side of the dust cover so I'd actualy try to get it started with a center punch and once its started enough take a hammer and use the nail remover part but place some rags under it so it dosnt mark up you body if not it probaly friction welded it self their witch is a posiblity hope this helps __________________ *MY COLLECTION* *AEG* M4 coustom full metal with king arms metal body //\\ Galaxy MP5 PDW *GAS/SPRING* KJW M9 FULLY UPGRADED //\\KWA FULL SIZE USP //\\ TF MAC11 *GEAR* Coyote Brown CIRAS

April 11th, 2009, 20:23	#3
Denis[teamplayer] Trader rating Join Date: Jan 2004	also try tapping the gearbox lightly to try and better align the holes so it will be easier to knock out. I agree with the above post, try to see if one side has the pin slightly indented and apply force on that side. find something to cover your body, this could get messy goodluck,

April 11th, 2009, 21:06	#5
hebet Trader rating Join Date: Jul 2008 Location: Langley, BC	This isn't about how to take it out, but I know some people like to glue that pin in, which is not recommended __________________

April 11th, 2009, 22:38	#6
ReSpEcT Trader rating Join Date: May 2008 Location: London, Ontario	OK, I got the pin out by trying the other side with more force! Now I am unable to remove the mechbox from the lower receiver it seems when i try to take it out that the rounded rear piece close to the stock is in the way. I can't seem to take out the mechbox. __________________ Classic Army M15A4 - Stock Last edited by ReSpEcT; April 12th, 2009 at 00:19..

April 12th, 2009, 14:12	#8
ReSpEcT Trader rating Join Date: May 2008 Location: London, Ontario	The screw in the buffer tube is already removed. When i look down it I see the mechbox and nothing else. There are no more screws to remove according to all the guides I have read. I have been trying to rock it out but it remains caught by rear part near the stock. See photo below. This is not actually my photo, just pointing out that my mechbox is stuck underneath this ridge. stuck.JPG __________________ Classic Army M15A4 - Stock

April 12th, 2009, 14:30	#9
Nova316 Trader rating Join Date: Nov 2006 Location: Calgary	Try throwing it into safe, then tilt it forward and out some mechboxes take a little bit more force to push it out Esp if its your first time taking it apart

April 12th, 2009, 20:44	#10
ReSpEcT Trader rating Join Date: May 2008 Location: London, Ontario	I tried putting it into safe, also tried putting it into safe then semi. I have been rocking it forward, back. Do I have to remove the selector switch? Is there some new trick on the new lineup of M15A4's? __________________ Classic Army M15A4 - Stock

April 12th, 2009, 21:49	#11
Amos Trader rating Join Date: Aug 2006 Location: Japan	Try being a little more forceful __________________ Custom Builds: FA3674U Krinkov G3SD6

April 12th, 2009, 21:55	#12
dpvu Trader rating Join Date: Mar 2008 Location: Calgary	You probably just need to be a bit more forceful. I understand the fear of breaking something though. Try putting it on semi and pushing out from the part that the grip would attach to while pulling down on the body with your other hand. Once it catches on the top of the body you need to push is forward (towards the front of the gun). __________________ JG HK416 KWA USP Last edited by dpvu; April 12th, 2009 at 21:58..

April 12th, 2009, 23:52	#13
ReSpEcT Trader rating Join Date: May 2008 Location: London, Ontario	Thanks for all the replies, but I still cannot remove the mechbox. I have tried tilting in every direction, pushing the mechbox from grip. I have used a lot of force and rocked it simultaneously but the mechbox won't come out. I've also tried all combinations on the selector switch, oddly when it is on auto it seems to not be able move as much. :banghead: __________________ Classic Army M15A4 - Stock

April 13th, 2009, 00:50	#14
Styrak Trader rating Join Date: Jan 2007 Location: Saskatoon, SK	Ok make a checklist. Did you remove: - pistol grip (that's a pretty obvious one!) - stock screw in the back of mechbox - rear body pin - mechbox retention pin - mag release __________________ Airsoft Sales and Repair/Upgrade Services

April 13th, 2009, 02:40	#15
ReSpEcT Trader rating Join Date: May 2008 Location: London, Ontario	Yes sir, everything on that list has been done! __________________ Classic Army M15A4 - Stock

Frozen Body Pin on CA M15A4

Doctor's Corner