Pretty cool with those FX liners. Would be nice to try a heavy slug liner sometime.
I don't own any FX guns, so the liners are new territory. Do you have to right size the CF sleeve to fit properly and lock down, or does the liner and sleeve all come together when you buy a liner kit?
Also - Are these liners 1/2UNF threaded for moderators?
Thanks
Just thought I'd share my attempt at doing this (Fx Barrels) in .30 Cal which has been quite the project which I stopped and need to finish at some point. Goal is using the .30Cal Heavy Slug Liner 700mm FX barrel. I wanted to make a very lightweight, accurate gun in .30 Cal that would put out 100+ FPS (basically its a semi-auto 22LR). I'll go into other mods later but first I'll talk about barrels.
The 600mm Barrell I purchased from Edgun West is great for certain projectiles and not for others. In fact I just tested it in the setup pictured with NSA 47.2 Slugs vs FX Hybrid Slugs (30 Cal) contest at 75 Yards. Set to high power, just one 0.2 Nozzle and a half turn up from .25 Cal factory setting to Regulator shoots ~1000 FPS for both slugs. Accuracy wise though, its not even close. The 47.2 NSA at 75 yards shoot within a 1 inch group. The FX Hybrids were about a 4" group. Also have tried both JSB .30 Cal pellets and neither of them shoot very well.
About the mods: Additional mods I have are carbon fiber 0.45kg Tank on bottom, extended tank (about an 1") on top and the large regulator tank (extends almost another inch). I found it necessary to have the 2 longer tubes on the top because with this size tank on the bottom (.45kg), you need it to be longer on backside or the tank gets in the way of the back of my hand when holding. Yet I need the extra large reservoirs to shoot high power and get a reasonable amount of shots. I can do about 3 clips at this high power setting! From memory, at factory settings (much lower power) I was getting about 10-12 clips before I need to refill with this larger air reservoir system. For comparison I was getting about 4 clips before refill with factory reservoirs. I use a carbon fiber AR style handguard and a carbon fiber silencer. Also the adapter (eaglevision 1/2 UCF) for the silencer I had to buy as the first one made all the pellets/slugs very inaccurate and thanks to your info CTS the one you recommended fixed that issue.
I'm pretty happy with the setup like this. I am getting 110 to 115FPE, can shoot 3 magazine before I need to refill and shooting just around 1MOA with 47.2 NSA Slugs. Gun is very quiet with this long barrel and silencer and its still pretty lightweight. What does suck is how slugs don't sit in the magazines which hopefully someone figures out a cure for. Also I bought 3 .30 Cal magazines and edgun west sent me 1. Still haven't seen the other 2 or been refunded to my knowledge (I need to bug him some more its been awhile)
Now regarding the FX Barrel Mod:
So if you compare the 600mm Edgun barrel to a 700mm FX Barrell its apple to oranges. You can tell the Edgun barrel is WAY higher quality and more than double the weight and much thicker. Its made to last. But, I'm after a lightweight setup so a barrel that weighs less than half is desired. Since its way thinner you have to bridge this gap to work properly in the gun. Adding a carbon fiber sleeve (from Ernest Rowe) can accomplish this but this was a nightmare for me to get to work (still not quite there!)
Why? 1) The blue locktite I had to use required alot more than expected as when I would shoot it, the high pressure would break the connection from the sleeve to the barrel.
2) The carbon fiber sleeve is just a little too thick when added to fit in the slot. I spent a lot of energy with handheld metal grinder edge to sand it a little thinner to fit. Luckily only had to do one side of it as other extends out of the gun or so I thought! Took awhile but I finally got it to slide in. Was so excited! Covered that thing in a TON of locktite and slid it on the barrel. Let it dry overnight. Next day I was ready to slide it into edgun and the idiot alert bell began ringing. I put the barrel in backwards on the sleeve and used ALOT of locktite.... Now I would need to spend a lot more time of very intense hand grinding to get it on and grind the other side. I was so annoyed and sick of it I put it away and forgot about this project for months!
Now my main concern at this high power will be the thin barrel will probably oscillate and there's nothing to really hold it in place aside from the small amount of it on the backend of the gun itself. Probably some smart way to do this at the end of the carbon fiber handguard but haven't come up with a nifty way to do this yet (thinking of some rubber triangle system but haven't put too much thought into how to do this).
With the carbon fiber tank, lightweight barrel + carbon fiber sleeve and handguard as well as carbon fiber silencer the gun weighs less than the 350mm .25Cal factory setup which is pretty amazing! I'll finish this project one day have the .30 Cal Heavy Slug Liner Barrel in the sleeve maybe I'll find some motivation soon. Really want to see how it shoots!
One final put for those not familiar with FX barrels. You will need to buy the barrell and the piece that goes on the end of it which allows you to attach a silencer. Forget what they call it and I could only find that part overseas as they try to make you buy "barrel Kits" which are a rip off when you dont need this. In addition to barrel and adaptor threat piece on the end you will need a carbon fiber sleeve to make it thicker and more comparable to the barrels that are designed to fit the gun. Unfortunately the carbon fiber sleeves I found from earnest rowe make it a hair too thick so you have to "sand it down" to size. In theory this is all you should need. Would also recommend another stabilizer somewhere on a handguard extension or something to try to hold the barrel in place better to reduce isolation. This can be counter intuitive to the concept of free floating barrels in normal guns but you arent dealing with extremely thin barrel walls like you are in the fx barrels.
