Huben First impressions of Huben GK1 .25 Shorty

I got my GK1 .25 Shorty from Kelly at Kraz Cool today! We had communications on possible variations, and he was so patient working with me - thank you Kelly for getting me exactly what I wanted!

Here is shot data as I got it- no tuning - just out of the box. 33 pretty flat shots from 31 amps to 11 amps with one empty shot in the middle (thus losing some air)

[Update, pellet was JSB Exact King Diablo 25.39 grain and changed bar to MPa]

Shot #SPEED (FPS)Δ AVG (FPS)KE (FT-LB)
1​
685.1​
10.7​
26.5​
2​
678.1​
3.7​
25.9​
3​
676.5​
2.1​
25.8​
4​
671.9​
-2.5​
25.5​
5​
669.4​
-4.9​
25.3​
6​
669.9​
-4.5​
25.3​
7​
663.8​
-10.6​
24.8​
8​
664.5​
-9.9​
24.9​
9​
665.1​
-9.3​
24.9​
10​
663.9​
-10.4​
24.9​
11​
663.2​
-11.2​
24.8​
12​
663.8​
-10.6​
24.8​
13​
662.2​
-12.2​
24.7​
14​
662.9​
-11.5​
24.8​
15​
661.6​
-12.8​
24.7​
16​
667.8​
-6.6​
25.1​
17​
665.6​
-8.8​
25​
18​
665.6​
-8.8​
25​
19​
667.4​
-7​
25.1​
20​
668.9​
-5.5​
25.2​
21​
674.9​
0.5​
25.7​
22​
676.3​
1.9​
25.8​
23​
676.7​
2.3​
25.8​
24​
682.8​
8.4​
26.3​
25​
695.5​
21.1​
27.3​
26​
703.6​
29.2​
27.9​
27​
702.3​
27.9​
27.8​
28​
697.9​
23.5​
27.5​
29​
692​
17.6​
27​
30​
685.8​
11.4​
26.5​
31​
676​
1.7​
25.8​
32​
672.7​
-1.6​
25.5​
33​
661​
-13.4​
24.6​


Here is what it looks like compared to my full-size GK1 .25. It was 2 inches shorter and it handled great.

Stock 20240601_003731957_iOS.jpg
Base 20240601_004015627_iOS.jpg
 
Last edited:
I got my GK1 .25 Shorty from Kelly at Kraz Cool today! We had communications on possible variations, and he was so patient working with me - thank you Kelly for getting me exactly what I wanted!

Here is shot data as I got it- no tuning - just out of the box. 33 pretty flat shots from 31 Bar to 11 Bar with one empty shot in the middle (thus losing some air)

Shot #SPEED (FPS)Δ AVG (FPS)KE (FT-LB)
1​
685.1​
10.7​
26.5​
2​
678.1​
3.7​
25.9​
3​
676.5​
2.1​
25.8​
4​
671.9​
-2.5​
25.5​
5​
669.4​
-4.9​
25.3​
6​
669.9​
-4.5​
25.3​
7​
663.8​
-10.6​
24.8​
8​
664.5​
-9.9​
24.9​
9​
665.1​
-9.3​
24.9​
10​
663.9​
-10.4​
24.9​
11​
663.2​
-11.2​
24.8​
12​
663.8​
-10.6​
24.8​
13​
662.2​
-12.2​
24.7​
14​
662.9​
-11.5​
24.8​
15​
661.6​
-12.8​
24.7​
16​
667.8​
-6.6​
25.1​
17​
665.6​
-8.8​
25​
18​
665.6​
-8.8​
25​
19​
667.4​
-7​
25.1​
20​
668.9​
-5.5​
25.2​
21​
674.9​
0.5​
25.7​
22​
676.3​
1.9​
25.8​
23​
676.7​
2.3​
25.8​
24​
682.8​
8.4​
26.3​
25​
695.5​
21.1​
27.3​
26​
703.6​
29.2​
27.9​
27​
702.3​
27.9​
27.8​
28​
697.9​
23.5​
27.5​
29​
692​
17.6​
27​
30​
685.8​
11.4​
26.5​
31​
676​
1.7​
25.8​
32​
672.7​
-1.6​
25.5​
33​
661​
-13.4​
24.6​


Here is what it looks like compared to my full-size GK1 .25. It was 2 inches shorter and it handled great.

View attachment 468973View attachment 468974
What grain .25?

Really nice by the way
 
The Huben pistol shorty is an absolute winner !!

I like how you got yours with the shroud really close to the same length of the tube.

On a sidenote just today I had to let my Shorty go to a new owner, .......the pistol was purely fantastic.
Thanks, that was something Kelly worked with me on. For a number of reasons I wanted the end of the air tube to be right around where the shroud starts to angle up and that’s what I got 🙂

I’m sorry that you had to let yours go, I had been following your journey- may another one be in your future.
 
  • Like
Reactions: BABz58 and Bandito