Huben pistol.

[Ach3r0n]

I'm sure I'm not the first one who asking this, but I can't find the answer. What is this screw exactly?
(Screw on Top of Receiver M3.5x8 - 56)

Decompression screw?

 

[steve-l]

I believe it is a degassing screw, but if used others have stated, it will not properly reseal and can cause the gun to leak air.

 

[MrP]

I saw a video mentioning this by Gregor. You can degass here but the screw has a high precision surface and seals with metal on metal on the receiver, so if anything gets messed up it can leak

 

[MrP]

Cast these 39 gr hollow point boat tails for my GK1 last night. New mold. Tried to keep the temp around low 600's.

The drive bands are large enough diameter that it requires force to push these into the chambers. I push them until they are just flush with the rear end of the magazine and they are held in place there by the chamber rifling.

Again this is my first time using these and I was worried they might be loose and able to slide forward like some slugs, but they stay put.

These seem like a good weight... gk1 should be able to shoot them at 900+ fps though i will be shooting at much lower power generally

Just shot a mag. They grouped very well (perhaps a coincidence - tighter than i am used to but i am shooting off hand standing at about 20 yds so who knows).

 

[JaceSpace1369]

Parts finally came in! I have it currently set up to shoot polymags at 805fps, from a 270b fill I'm getting about 2.5 mags

 

[Hapo]

...am liking the GK1 V3 so far, but it hits very low, and I don't know how to clean the barrel...

...is there a way to adjust elevation or access the breach...?!?...

 

[MrP]

The built in sights are adjustable for windage and elevation. One needs small flat head, the other and allen wrench

There is a video on how to safely disassemble the gun to clean the barrel. I found it to be very simple. Search for dissembling gk1 by Gregor K who is the man when it comes to the gk1

(There are some ways to do it that don't involve degassing and disassembly but those are not recommended just because there's some risk involved.)

 

[Hapo]

...I don't think we are talking aboot the same gun...are you saying the front sight is adjustable...???...

...I have a GK1 V3 that has nowhere to apply a flat head screwdriver and the front sight is not adjustable and already tiny...I don't think it is 1/4" tall...

...I couldn't file it anyway as there is a fiber optic in it...

...I didn't realize I had to take this thing apart to clean it...!!!...LoL...

...thanks for the reply...

 

[JaceSpace1369]

...I don't think we are talking aboot the same gun...are you saying the front sight is adjustable...???...

...I have a GK1 V3 that has nowhere to apply a flat head screwdriver and the front sight is not adjustable and already tiny...I don't think it is 1/4" tall...

...I couldn't file it anyway as there is a fiber optic in it...

...I didn't realize I had to take this thing apart to clean it...!!!...LoL...

...thanks for the reply...

View attachment 465817

Right hand side under the rear sights it's a flathead screw

 

[Nomadic Pirate 66]

...I don't think we are talking aboot the same gun...are you saying the front sight is adjustable...???...

...I have a GK1 V3 that has nowhere to apply a flat head screwdriver and the front sight is not adjustable and already tiny...I don't think it is 1/4" tall...

...I couldn't file it anyway as there is a fiber optic in it...

...I didn't realize I had to take this thing apart to clean it...!!!...LoL...

...thanks for the reply...

View attachment 465817

Why would you want to adjust the front sight ?

Everything is done on the rear, elevation and windage

 

[Nomadic Pirate 66]

Cast these 39 gr hollow point boat tails for my GK1 last night. New mold. Tried to keep the temp around low 600's.

The drive bands are large enough diameter that it requires force to push these into the chambers. I push them until they are just flush with the rear end of the magazine and they are held in place there by the chamber rifling.

Again this is my first time using these and I was worried they might be loose and able to slide forward like some slugs, but they stay put.

These seem like a good weight... gk1 should be able to shoot them at 900+ fps though i will be shooting at much lower power generally

Just shot a mag. They grouped very well (perhaps a coincidence - much tighter than i am used to on this magazine but i am shooting off hand standing at about 20 yds so who knows).

View attachment 465657View attachment 465658

Great looking ammo, I like that style

 

[Hapo]

...thanks for the information and illustration...which screw controls elevation...???...

 

[dflo]

The screw on top of the rear is elevation. There is a little spring under it so it raises if you back the screw out. Just do it with caution because if you go too far the little spring will pop out when the screw is free.

 

[Nomadic Pirate 66]

You need an exkey as you unscrew the screw just in front of the actual sight there's a spring that will push the sight unit up,

 

[Nomadic Pirate 66]

The screw on top of the rear is elevation. There is a little spring under it so it raises if you back the screw out. Just do it with caution because if you go too far the little spring will pop out when the screw is free.

fast bugger you

 

[JaceSpace1369]

The one on the side adjusts windage and the one ahead of the rear sights adjusts the elevation.

 

[MrP]

Parts finally came in! I have it currently set up to shoot polymags at 805fps, from a 270b fill I'm getting about 2.5 mags

View attachment 465724

View attachment 465725

.22?

 

[JaceSpace1369]

.22?

Yessir

 

[Nomadic Pirate 66]

Parts finally came in! I have it currently set up to shoot polymags at 805fps, from a 270b fill I'm getting about 2.5 mags

View attachment 465724

View attachment 465725

Isn't this a wonderful platform ?......look what you can do with a pistol, and I am not just talking about the mods........ but your tune, that is fantastic for a rifle never mind out of a tiny pistol to get 50 shots at over 20 FPE and not even close to full fill.

Said this many, many times but the Huben pistol is just plainly phenomenal,...they need to offer the Bullpup without the regulator

 

[JaceSpace1369]

Isn't this a wonderful platform ?......look what you can do with a pistol, and I am not just talking about the mods........ but your tune, that is fantastic for a rifle never mind out of a tiny pistol

It's mind blowing to say the least. I should be getting my hand pump tomorrow, so I'm hopingnto be able to pump it up to 350.

I also got 2 .218 sample packs of H&N slugs from 21-40gr as well as the zan .219 22gr slugs to see what it likes best within a reasonable power level for whenever I want to reach out there haha.