GSG 16 Stop Block Screw Stripped

[wanwan]

Have loved my GSG 16 since the day I got it.

When I first cleaned it, I knew that the Stop Block Screw was not built to last.

I have partially striped it and maybe have one more use out of it.

While changing the sights, I lost the Rear Sight C - Clip as well.

I have tried to contact Blue Line Solutions but not heard from them.

Where can I get them from?

 

[thegazelle]

Have loved my GSG 16 since the day I got it.

When I first cleaned it, I knew that the Stop Block Screw was not built to last.

I have partially striped it and maybe have one more use out of it.

While changing the sights, I lost the Rear Sight C - Clip as well.

I have tried to contact Blue Line Solutions but not heard from them.

Where can I get them from?

Man, you read my mind. I posted about something similar yesterday when I went to clean my gun. I was wondering why my torque bits seem to be slipping - looks like the screw is starting to be stripped. I re-tightened this somewhat knowing that just like you, there are few if any cleanings left before it becomes completely stripped. I may take the screw into home depot to see if there is something comparable. In the meantime I may have to wait a lot longer before cleanings and only clean it when I start experiencing significant performance problems.

I was at a somewhat LGS recently and they mentioned they have found Blue Line warranty and parts services to be lacking. Hope I am wrong here; at any rate, please post an update if you hear from them or source the screw somehow.

 

[Curtton]

relax... its just a regular hex metric M4x12 screw. your local hardware store has them. very common.

the 12 is the length in mm, you can always cut it with a dremel if too long.

 

[GerardSamija]

I've posted this in the main GSG-16 mods thread some months ago, but as I'm keeping the images hosted on my site anyway it makes sense to share them wherever potentially relevant. Here are 4 images showing my solution to a couple of problems. The weak point of the screw threads for the stop block was obvious right away, besides the way it irritated me that a tool was needed to get the bolt out. So besides ordering a pair of takedown pins, I modified the stop block by adding a little plastic knob to it for removal/insertion, than made a UHMW block which retains the metal stop block. Any engineering plastic would do the same job, and as it's not a stressed part, just acts as a retainer against the block dropping, it could even be made from a block of wood. Dimensions are the only really important factor, including locations and size of the guide rod holes.

With these changes and the takedown pins, the rifle can be field stripped without tools very quickly and without physical difficulty. Putting it back together is just about as easy, though the stop block is always slightly fussy about alignment as I try pushing it in, but not that hard to do.

 

[wanwan]

Cheers.
Really Appreciate it.

 

[wanwan]

Cheers @ Curtton and @GerardSamija

Really Appreciate it.

 

[Curtton]

I've posted this in the main GSG-16 mods thread some months ago, but as I'm keeping the images hosted on my site anyway it makes sense to share them wherever potentially relevant. Here are 4 images showing my solution to a couple of problems. The weak point of the screw threads for the stop block was obvious right away, besides the way it irritated me that a tool was needed to get the bolt out. So besides ordering a pair of takedown pins, I modified the stop block by adding a little plastic knob to it for removal/insertion, than made a UHMW block which retains the metal stop block. Any engineering plastic would do the same job, and as it's not a stressed part, just acts as a retainer against the block dropping, it could even be made from a block of wood. Dimensions are the only really important factor, including locations and size of the guide rod holes.


With these changes and the takedown pins, the rifle can be field stripped without tools very quickly and without physical difficulty. Putting it back together is just about as easy, though the stop block is always slightly fussy about alignment as I try pushing it in, but not that hard to do.

ingenious.

 

[thegazelle]

I've posted this in the main GSG-16 mods thread some months ago, but as I'm keeping the images hosted on my site anyway it makes sense to share them wherever potentially relevant. Here are 4 images showing my solution to a couple of problems. The weak point of the screw threads for the stop block was obvious right away, besides the way it irritated me that a tool was needed to get the bolt out. So besides ordering a pair of takedown pins, I modified the stop block by adding a little plastic knob to it for removal/insertion, than made a UHMW block which retains the metal stop block. Any engineering plastic would do the same job, and as it's not a stressed part, just acts as a retainer against the block dropping, it could even be made from a block of wood. Dimensions are the only really important factor, including locations and size of the guide rod holes.

With these changes and the takedown pins, the rifle can be field stripped without tools very quickly and without physical difficulty. Putting it back together is just about as easy, though the stop block is always slightly fussy about alignment as I try pushing it in, but not that hard to do.

Gerard, you are the MacGyver of CGN!

 

[nitroxace]

I have not run into this problem "yet". Thanks for sharing as I well be tagging this for future reference.

 

[WiseCanuck]

Sad to see.