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I am very happy for your success, but I suspect it is premature. There are many things that will cause POI shift, but the real reason which you cannot correct is the receiver to barrel interface. To prove my point, just remove and reinstall your barrel from the receiver. The gun will not shoot...

It's a great idea. It really can save a lot of air being wasted, but it is frail and does not work reliably.

I received my ordered second one. They will work well at pressures not to exceed 200 bar. After that with higher pressures they start failing by first not bleeding down once the lever is released. Then with continued use at higher pressures, the actuating pin fails. The seller has received many...

If you want help, you have to do better in answering the questions asked. We have a lot of experience with this gun, but you are there and we are not. You have to be our eyes. Taking the gun apart and resealing can cause as many issues as those that you can fix. This is especially true with the...

Subscriber is correct. I have been an air gun enthusiast my whole life. Air guns are short range and residential area friendly. I never go to a shooting range with an air gun. Their value is that can be used in an urban environment safely. In so doing, moderators are very much part and parcel to...

There are two primary factors that influence sound reduction. There are others as well but are actually quite minor. The first is volume and the second is moderator bore size. When it comes to volume, the larger the better. When it comes to bore size in my experience, .020" (.5 mm) diametral...

You are correct, a long taper would not be appropriate. A short , keyed taper and a clamping nut is the correct answer.

What's your point? That photo is not a barrel clamp.

FX is avoiding this subject because it makes very public a serious design fault. It is no safety issue using a bottle clamp. There is no stress on the bottle. The design fault is the weakness and flex of the thin wall barrel design, but the real cause of the POI shift is the loose coupling of...

Foster fitting leaks are unfortunately very common because there appears to be no enforced dimensional standards for these quick connect fittings and can often cause the fittings to blow apart under pressure, which can be very exciting. When this happens, it very often ruins the internal O ring...

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.

I shoot my pistols everyday at least 20 rounds, usually 2 magazines. It is not economical to print your own targets. They are much cheaper to buy in bulk and they are made from heavier paper stock. I use the 14cm square, 5 1" bullseye 10 meter rifle target at 25 meters. I can now consistently...

To each his own. I see no reason not to degas, disassemble and properly clean the GK1. It is both fast and easy. It allows total gun cleaning, inspection and lubing as well.

So far all we have to deal with is conjecture. We need to know what really happened and why, so we can benefit from this very unfortunate incident. Let's wait until this info is known.

Yes, you are partially correct, but as an example most FX guns use an adapter that fastens to the shroud, not the gun barrel. The new HUBEN GK1 (both v1 and V3) uses an adapter that screws onto barrel threads and the adapter first clamps the shroud to the receiver. The adapter threads will...

Threads are effectively a circular ramp whose purpose is to exact mechanical advantage to provide a clamp. In order for this to happen there must be a running clearance between the male and female parts to prevent seizing. Threads cannot provide concentric alignment because of the required...

That is really bad advice.

Misalignment is always possible because the moderator attaches to the shroud, not the barrel. All threads require a running clearance to operate. Perfect barrel alignment requires a reference surface and there is not one. That does not mean that alignment is not possible, it can happen, but is...

The issue with all of this if the assessment is subjective. How much is enough suppression to be backyard friendly? One point that I think is very important to all users of moderators is moderator bore to barrel alignment. It is very common to see these things mounted with a skew that can cause...

Will a larger bore mod work on a smaller caliber gun? Yes, but not with the same level of sound suppression. The major factors that effect sound suppression most is volume and bore size. Optimum bore size for a mod is .040" (1 mm) larger than the pellet diameter.