Mullered mag release

[Dan Robinson]

 

Trying to get this out.  It looks like it's been stripped in the picture, but in reality, it's equally unlikely to have had a head. 

 

Any idea how get this off?  Gun is a Devgru M16 DG4 A2. 

 

Tah in advance. 

Edited March 5, 2023 by Dan Robinson

[Tackle]

Gently tap a slightly oversized torx bit in to it should probably do it ? 

[Dan Robinson]

Have tried an assortment of those and no dice.  Surprisingly hard metal for something that scratches so easily. 

 

 

 

 

Merged edit. 

 

 

 

Figured it out..... 

 

Bolt catch is held in with a pin, then the mag release needs pushing all the way in so you can unscrew the arm on the other side. 

 

 

Guess it's marginally better than a tiny little screw to strip. 

Edited March 5, 2023 by Dan Robinson

[Tackle]

29 minutes ago, Dan Robinson said:

Have tried an assortment of those and no dice.  Surprisingly hard metal for something that scratches so easily. 

 

 

 

 

Merged edit. 

 

 

 

Figured it out..... 

 

Bolt catch is held in with a pin, then the mag release needs pushing all the way in so you can unscrew the arm on the other side. 

 

 

Guess it's marginally better than a tiny little screw to strip. 

That's new (to me anyway), there's always some fecker wanting to reinvent the wheel lol

[Dan Robinson]

Now I have the gearbox loose in the reciever, but can I get the bugger out? 

 

Can I fck. 😒

[RostokMcSpoons]

It's the same method as on my Double Eagle M906, so there are similar wheels elsewhere 😋

 

I was fooled by it too, thanks to @Adolf Hamster for pointing out to me how it worked.

 

Dan, have you tapped out the pin above the trigger?

[Nick G]

50 minutes ago, Tackle said:

That's new (to me anyway), there's always some fecker wanting to reinvent the wheel lol

Real steel style, my GBBR's are the same.

[Dan Robinson]

14 minutes ago, RostokMcSpoons said:

Dan, have you tapped out the pin above the trigger?

 

Yes I had for that one.

 

Just got it out now.  Needed a bit of brute force and ignorance. 

 

All the gears are fine, so I think the nasty noises were just the engagement height.  

 

Time to reassemble and battle that damn anti reversal lever. 

 

I think I kept the shims in the right places. 

Edited March 5, 2023 by Dan Robinson

[Colin Allen]

29 minutes ago, Nick G said:

Real steel style, my GBBR's are the same.

Indeed; unsurprisingly, real steel M4s do not rely on tiny screws to keep the mag release in place :).

20 minutes ago, Dan Robinson said:

 

Yes I had for that one.

 

Just got it out now.  Needed a bit of brute force and ignorance. 

 

All the gears are fine, so I think the nasty noises were just the engagement height.  

 

Time to reassemble and battle that damn anti reversal lever. 

 

I think I kept the shims in the right places. 

You can get a clip that will hold the ARL in place while you reassemble; https://www.ak2m4.co.uk/internal-parts/gearbox-tools/gearbox-installation-hands-kit

[Dan Robinson]

Thanks for that.  Next order I place there I'll get those. 

 

My next learning target is to figure out what I'm doing that results in the gearbox locking when I reassemble it.  I did it to my Specna, now this one. 

 

Last tech to work on it seems to have done a tidy job.  No excess greese, although the red wire is mighty close to the motor shaft. 

 

When I can reassemble these things reliably, I might drill the casing and reroute it.  Or perhaps use a slightly thinner guage wire. 

 

Not sure what mosfet has been fitted either.  Has the label "AAUG09". So will hit Google while I have a relaxing bubble bath 😁

Edited March 5, 2023 by Dan Robinson

[Colin Allen]

1 hour ago, Dan Robinson said:

Thanks for that.  Next order I place there I'll get those. 

 

My next learning target is to figure out what I'm doing that results in the gearbox locking when I reassemble it.  I did it to my Specna, now this one. 

 

Last tech to work on it seems to have done a tidy job.  No excess greese, although the red wire is mighty close to the motor shaft. 

 

When I can reassemble these things reliably, I might drill the casing and reroute it.  Or perhaps use a slightly thinner guage wire. 

 

Not sure what mosfet has been fitted either.  Has the label "AAUG09". So will hit Google while I have a relaxing bubble bath 😁

That sounds like a Gate serial number. Do you have a photo of the mosfet?

[Dan Robinson]

23 minutes ago, Colin Allen said:

That sounds like a Gate serial number. Do you have a photo of the mosfet?

 

 I think you're right looking at the logo on the back.. 

 

 

 

 

[Colin Allen]

13 minutes ago, Dan Robinson said:

 

 I think you're right looking at the logo on the back.. 

 

 

 

 

Gate Nano ASR.