Gbb bolt getting stuck in stock tube

[shawzy]

Hi folks,

Having bit of a dilemma, recently took my vfc 416 apart to fit a magpul ubr stock, all good except that upon pulling the charging handle/bolt back the bolt gets jammed in the stock tube and won't release until I pull it all apart again!
I know it's not the magpul stock as I fitted the original stock tube back and still had he same problem! I've also tried a different bolt and that's ditto!
The gun charges and the bolt will lock on the bolt catch only when I pull the charging handle back half way!
It seems to be something on the lower receiver causing the issue but with little knowledge and spare parts for gbbs I'm now resorting to the zero in techs! Again!

Any help would be much appreciated 😀

Thanks folks!


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[johnnyj]

Re: Gbb bolt getting stuck in stock tube

Did the ubr stock come with any spacers ? I see this all the time on WE guns that have have the buffer tube swapped out

[shawzy]

Gbb bolt getting stuck in stock tube

Negative! There was a spacer on the original stock tube (by spacer you mean the one that goes between the receiver and stock nut?)


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[johnnyj]

Re: Gbb bolt getting stuck in stock tube

Just dug out my old spare vfc 416 lower and the buffer tube still had its spacer , its a small alloy block that goes in to the tube first should be still in your buffer tube if you tap it out

[shawzy]

Re: Gbb bolt getting stuck in stock tube

Is said spacer the one that's got a small grub screw holding it in?


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[johnnyj]

Re: Gbb bolt getting stuck in stock tube

your in the right area , thats for the backing cap and infront of that cap will be the spacer .

[shawzy]

Re: Gbb bolt getting stuck in stock tube

I'll give it a go now and let you know!


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[shawzy]

Re: Gbb bolt getting stuck in stock tube

Any advice how to get it out? There's definitely a spacer In there, I measured it! I can't even get the end cap off the tube even with the grub screw removed!


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[johnnyj]

Re: Gbb bolt getting stuck in stock tube

I tapped the tube on my work chair till it slid out

[shawzy]

Re: Gbb bolt getting stuck in stock tube

Haha lucky you! I've had the hammer on it and it's still not budging! May resort to cutting the tube down!


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[johnnyj]

Re: Gbb bolt getting stuck in stock tube

just to see if thats the issue use something to act as the spacer its 1.5cm with a little extra on the cap so stick something in the ubr tube thats 3cm and see if the bolt jams ( make sure it can be removed lol )

[shawzy]

Re: Gbb bolt getting stuck in stock tube

Okay thanks, I'm a plumber so I've got plenty of washers, thanks for the help mate


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[shawzy]

Re: Gbb bolt getting stuck in stock tube

Johnnyj thanks, worked a treat!


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