Tuning Length of FX carbon barrel sleeve, seems short to me

[inverted]

I've just received FX carbon barrel sleeve for .25 cal, 700mm, bought at Krale (Holland) so I have no reason to doubt it's origin.
It's a nice fit on the liner and in the barrel tube, no wobble and not too tight 

When I've put it in the barrel, I've noticed that it leaves 5.5mm gap between itself and the liner lock (it seems that it's 5.5mm short)

Is that how it's supposed to be or is this some kind of an error?

I thought of putting 3 of the liner's orings that are now unused between the liner lock and carbon sleeve just to fill up the space. I have no idea if that would be a good thing, a bad thing or it doesn't matter at all.

Thanks!

 

[Long_Gun_Dallas]

There is room for jam nut and retaining bolt, it's meant to be that long 

 

[corny]

So I cut mine myself. 
I have .02”-.03” clearance on either side. 
u don’t want the liner touching the breech or tensioning nut once u have it glued. 


I guess I have no idea how much clearance FX wants to see. 

 

[lancehenley1]

I bought one for my Maverick. Not sure it its going to go in. Did you take the barrel off of the gun before you put it in.

 

[inverted]

I did take the barrel of the gun but it's not necessary if you don't feel comfortable with that.

One can simply remove the shroud, unscrew the lock nut, pull the liner out and put the carbon sleeve over the liner and then everything back together. 

Just be sure that you don't leave any of the liner spacer orings in the barrel before reassembly 

 

[inverted]

There is room for jam nut and retaining bolt, it's meant to be that long

Sorry, English is not my native language so I may be misunderstanding you.

Jam nut would be liner lock nut?

Which retaining bolt do you refer to?

 

[Long_Gun_Dallas]

There is room for jam nut and retaining bolt, it's meant to be that long

Sorry, English is not my native language so I may be misunderstanding you.

Jam nut would be liner lock nut?

Which retaining bolt do you refer to?

Superlight barrels have a Jam nut, normal stx barrels have a retaining bolt

 

[ChRiSiS]

There is room for jam nut and retaining bolt, it's meant to be that long

Sorry, English is not my native language so I may be misunderstanding you.

Jam nut would be liner lock nut?

Which retaining bolt do you refer to?

Superlight barrels have a Jam nut, normal stx barrels have a retaining bolt

L_G_D, I’m thinking of putting one on my .22 700mm Crown barrel. I’m leaning towards also using one of the large O ring spacers at the muzzle end of the liner since I think the CF tube is short enough. The Jam nut/bolt combo at the back holds things well, the CF sleeve should keep the liner from oscillating in the middle, while the O ring/spacer after the CF tube ends at the muzzle end should help keep it aligned down there. Your thoughts would be appreciated.

Chris

 

[Glem.Chally]

There is room for jam nut and retaining bolt, it's meant to be that long

Sorry, English is not my native language so I may be misunderstanding you.

Jam nut would be liner lock nut?

Which retaining bolt do you refer to?

Superlight barrels have a Jam nut, normal stx barrels have a retaining bolt

On the normal STX it's called a liner lock.

https://fxairguns.com/wp-content/uploads/2019/05/X-barrel-kpl.pdf

 

[TDK]

When I've put it in the barrel, I've noticed that it leaves 5.5mm gap between itself and the liner lock (it seems that it's 5.5mm short)

I just installed one in my 700mm .30. I did some measuring because I was curious as to how much clearance there would be. It was around 6mm but I didn't measure for high accuracy. Seems like reasonable clearance to me to ensure it doesn't contact the liner lock nut.

 

[inverted]

I'll test for accuracy with and without orings that provide some tension and report back on what works better