Ultralight's latest activity

If you have a Buck Rail CFT stock that you are not using, please message me with what you want for it. I'd like to experiment with that...

I'd like to have a vertical grip for the GK1 but obviously no one makes one. Any sense of which after market grip may be the most...

*SOLD* I purchased these two different butt stocks to try with a Huben GK1 I had last year. As you can see from the attached pictures...

Quick question: What is the stock LOP (length of pull) on this? And what is the adjustability range? Thanks

I guess it really depends on the type of valve you are using. It should be true to some extent in most cases, but in this kind of valve...

Absolutely. The lighter the projectile, the faster it leaves the barrel, which results in faster pressure drops, which in turn results...

someone else can probably explain it better, but the closing of the valve is somewhat related to the drop in pressure from the...

Looking for a 1911-style grip for the GK1 to experiment with. Printed OK - prefer a budget solution as this is to run a test. Thanks!

I believe that he has to change the power setting higher to get the same FPS with a heavier projectile.

wow, so u can send a heavier pellet with the same fps… that’s so interesting to know… I always thought that lighter the pellet the...

so today filled up the tiny 80cc gk1 tank up to 310bar, grabbed some 7.2gr Newman hollow point pellets. and opened up the power screw up...

Idk about 20fpe but with 15.89gr going 810fps I got 60 good shots with my old gk1 .22 from 350b-130b

OK, question for those participating in this "All Things Huben GK1" thread. When did Gk1 come with the traditional square print carbon...

Yes. Designed this way - so that you have flexibility in placement.

Thanks. Just saw a video today form a link on the front page of this forum. The guy was shooing at 970fps and getting MOA at 50...