Huben Any issues or problems with Huben gk1 please share your experience

Anyone here buy and install their own shorty conversion? I did and can't get it from trimming air from the mag. Loud even with ldc.
Seems the mag to barrel seal has flown the coupe!!
There is no mag to barrel seal. You have to put the barrel in until it touches and then back it off 1/8 of a turn, maybe less, so that the mag rotates freely. Gap should be .010 inch or less.
 
Anyone here buy and install their own shorty conversion? I did and can't get it from trimming air from the mag. Loud even with ldc.
Seems the mag to barrel seal has flown the coupe!!
I am not brave enough to open up my GKls , I am not gifted like a lot of you guys , I am all thumbs and no my limit.
Mike
 
There is no mag to barrel seal. You have to put the barrel in until it touches and then back it off 1/8 of a turn, maybe less, so that the mag rotates freely. Gap should be .010 inch or less.
Sorry magazine front cover little half round plastic thingie. Well things went a bit south magazine stop popped out, so I been struggling with it trying to get it back in place.
 
Sorry magazine front cover little half round plastic thingie. Well things went a bit south magazine stop popped out, so I been struggling with it trying to get it back in place.
Front cover plastic c shaped thing is a gap filler to keep slugs from dropping into space around barrel. Part didnt exist on original K1's.
 
How do you reset the striker properly? I thought I did it correctly, but when airing up at about 100 bar, I hear a clunk. Then I just get an air dump when pulling the trigger. I'm apparently not a quick study, as I've tried this three times in a row.:confused: Is there a trick to it? Of course this was after doing this:

PXL_20241119_215514391_1920.jpg
 
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Never mind, found one of Kelly's videos - in the comment section, he mentioned about pulling the trigger AND then resetting the striker. All is good now. CF shroud replacing stock non functional shroud. Works pretty well, pretty quiet, well worth doing! Took me two days to do. A day for printing and a day to fit things and to cut the CF tube to size.
 
Mangled up the sear spring!View attachment 514348
You are having about as much fun as I am.

After shooting 19 rounds successfully yesterday, (after resetting the striker) I took a shot today (dry fire) and I'm back to an air dump. Beats me why I've getting these dumps right now. Maybe something got damaged. Not sure why, everything was fine before degassing.

After getting annoyed at the sight interfering with disassembly, I removed the 1mm pin. Used a common pin to press it out. Both the 1mm pin and the sight are in a GK1 parts bag. Having to resight after these dumps has really annoyed me.
 
How do you reset the striker properly? I thought I did it correctly, but when airing up at about 100 bar, I hear a clunk. Then I just get an air dump when pulling the trigger. I'm apparently not a quick study, as I've tried this three times in a row.:confused: Is there a trick to it? Of course this was after doing this:

View attachment 514199
Now this is one sexy looking gk1.
 
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You are having about as much fun as I am.

After shooting 19 rounds successfully yesterday, (after resetting the striker) I took a shot today (dry fire) and I'm back to an air dump. Beats me why I've getting these dumps right now. Maybe something got damaged. Not sure why, everything was fine before degassing.

After getting annoyed at the sight interfering with disassembly, I removed the 1mm pin. Used a common pin to press it out. Both the 1mm pin and the sight are in a GK1 parts bag. Having to resight after these dumps has really annoyed me.
It's sure been interesting piece to work on lol. I'd sure like to see how that mag stop is installed in the factory. Lots of little moving parts lol
 
Crossing fingers, reprinted some parts in the shroud, and reassembled it. Reset the striker. Filled with air, to 250 bar, and filled the magazine. At least with 17.6gr Norma's, the sound is subdued indoors. No, not mouse fart quiet, but honestly, pretty good. It will be fine outdoors. A dry fire is quite a bit louder. We'll see how long this keeps up. When airing up, around 100 bar, there's an audible click as something moves inside the action. Not sure what that is, but will have to remember that.

In all the thrashing, I had to unscrew the air tank to access the barrel. I was half expecting a leak upon reassembly. Fortunately it didn't leak. Have to re-chrony this again, have no idea what I set it do, it's about 1/2 turn off the bottom. Kelly had set it to around 900 fps for the Norma's. I had to set it to minimum when degassing (per the recommendations). Hoping there are no more unexpected dumps.