Smooth Twist X upgrade barrel for older Impacts

Forums PCP Airguns Smooth Twist X upgrade barrel for older Impacts

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    Saltlake58
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    Just noticed that AoA has a limited time offer (not sure exactly what that means), but you can buy an X Barrel Upgrade Kit without the shroud or probe for $260.  It doesn't really show up on normal searches, so you can find it by expanding the Accessories menu, choose Barrel Accessories, and it'll show up there.

    It's called the "FX Impact Smooth Twist X Barrel Upgrade.  Comes in .22, .25 and .30.

    I called AGD and Utah Airguns and they don't seem to have the upgrade barrel, just full barrel kits.  Not sure about other dealers.

    Expensive upgrade, but cheaper than buying a barrel with shroud and probe by $140.  I just ordered one, should be here next week.  Hope it's worth the $$!

     

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    gunsnknives
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    Thanks. Where did you end up buying yours? Do they have the 700mm one available? Would be nice to also get a slug liner for a 700mm barrel.

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    Saltlake58
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    Airguns of Arizona was the only place where I found the barrel upgrade only.  Everyone else had the complete kits with shrouds and probes, where this is just the barrel.  The upgrade is 600mm only, I believe intended to let those of us with older guns upgrade in the same caliber.  They do list the 700 mm barrel kit for $430, and  700mm "B" liner (slug if I remember correctly) for $110.

    Just look under barrel accessories and you will see the full line if barrels, liners and such that they have available today.  Call them if you don't see what you want.  In fact, call AoA, AGD, and Utah Airguns and shop around.  All three give fantastic service.

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    Saltlake58
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    Just got ontified, out of stock.  Couple weeks out. . . . . . . . .

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    Saltlake58
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    Called AoA yesterday.  They expect their shipment in on Friday, 6/3.  They will ship after it arrives, if FX sends it.  will follow up on Monday

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    Drumsnguns
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    Hmmm, I bought the barrel upgrade for my .25 Impact from Utah Airguns the last week of May for, I think 249.00 or was it 259.00. Anyway I have it and it’s just the barrel and liner. Just remove the shroud and attenuator from the original ST and put it on the X barrel. 

    Perhaps they’re just out if stock

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    Azycray
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    Can you describe how to remove the shroud and attenuator from an original ST barrel? Anyone have a video? It looks like a special tool is needed, on the back side of the shroud there is two tiny holes on opposite sides of center-line. I would assume you would need to hold that piece with a tool and unscrew the barrel by hand?

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    Saltlake58
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    To remove the shroud, I just tightened the barrel set screw to hold everything in place, made sure it was unloaded and not cocked (safety before anything else), put the gun between my knees and unscrewed it.  It was tight, but once the threads broke loose, came right off.  

    I believe the threads that hold it in place are on the front end (muzzle end) of the shroud.  The two set screws you mention, I'm not sure what they do, but I did not do anything with them.

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    Saltlake58
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    Drumsnguns

    Hmmm, I bought the barrel upgrade for my .25 Impact from Utah Airguns the last week of May for, I think 249.00 or was it 259.00. Anyway I have it and it’s just the barrel and liner. Just remove the shroud and attenuator from the original ST and put it on the X barrel. 

    Perhaps they’re just out if stock

    Good on ya! I called UAG first before I ordered from AoA, and UAG either didn't have any in stock, or know about it.  AoA had it on their web site, so ordered from them.  Good t know they aren't phantom products and will eventually arrive.

    It'll be a couple weeks before I can get any heavy shooting in anyway.  Family in the hospital.  Amazing how much time that takes away from shooting.

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    Azycray
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    SaltLake, The two holes I mention are not set screws. They look like holes designed for a tool to hold that part in place. I had actually  unscrewed it partially without realizing it. After reading your response I went back and kept turning it and eventually it came off. The end piece with the two holes is indeed just a cap for a hollow tube. It has an o-ring sandwiched between that end cap and the shroud tube. Same at the muzzle end, it also looks to screw off, the part with the threads for the LDC. So now my question is, what purpose does the shroud serve? I'll start a new thread on this one. "What purpose is the shroud on an Impact?"

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    Saltlake58
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    What purpose is the shroud for?  Kinda wondered the same thing myself.  Looks, maybe a bit of barrel support?  It's doesn't have any air holes connected to the moderator, so can't be for suppression, yes, I wondered the same thing myself.  If it has any structural purpose, perhaps to support the heavier .25 caliber barrel to prevent any barrel droop.  Other than that, just looks I guess.  I know the.22 barrel doesn't have the fixed shroud, so not sure what the purpose is.

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    riazp
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    On all fixed shroud guns, .22, .25, .30 the shroud is an air stripper and suppressor mount.

    on all telescoping shrouds the inner shroud is an air stripper and outer shroud support.

     

    it not just for looks…

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    Saltlake58
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    Cancelled the order with AoA today.  FX didn't ship, so AoA has nothing to ship.  Called UAG back, this time they understood what I'm asking for, and it should ship today.  Maybe shooting again by next weekend?

    Looking forward to seeing if there really is any difference.  From what I've heard, shooting pellets, not much but the real advantage might be in buying a slug liner.  We shall see – – – –

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    Ginuwine1969
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    SaltLake:  I just ordered one (.25 cal STX barrel upgrade) from AOA, i'm more of a visual person could you take a few pictures or make a video for me.  I'm currently overseas so won't be doing the conversation for at least 6-8 weeks, but i can save anything you post.  Thanks in advance.  I've had my barrel off several times in the past to clean it.  I have one of Donny's shrouds on the end so not really sure what has to be swapped over? 

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    Saltlake58
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    I should have the barrel tomorrow if all works out.  UAG was more than helpful in everything.  Main difference is that the older Impacts use a thumb screw to tighten the barrel, while the X Barrels use a grub screw.  UAG included the grub screw with the deal.  Shroud just screws off, and will screw back on to the X barrel.  I'll see what I can do about a short vid.  40 years in cameras, but all still work.  No video, so this could be a first.

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    Saltlake58
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    barrel in the house.  Need a set screw.  FX Changed from the regular screw and a dimple in the barrel to a cup faced set or grub screw.  Those should be here Saturday.

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    Saltlake58
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    Barrel change was easy – 

    Before anything else, CLEAN THE NEW BARREL.  I used a Patch Worm and Ballistol.  Only took about 10 patches, but there was definitely gunk on the inside.  All gone now.

    1. Ensure gun is not pressurized, cocked, loaded or anything else.  Safety first.

    2. Put the gun muzzle up between your legs and unscrew the shroud from the original smooth twist barrel.

    3. remove the barrel retaining screw and remove the old barrel.

    4. Screw the shroud onto the new X barrel.  Mine was a really tight fit sliding on, but it did fit. Just took a couple tries.

    5. I put a tiny bit of silicone grease on the O-Rings on the barrel.  Figured it couldn't hurt and might make fitting easier.  It was still tight!

    6. Insert the new barrel into the gun, and fit.  Ensure it's properly fitted by inserting the magazine.  If the mag slides all the way through, the barrel isn't properly set yet.  Keep working the barrel in until it's properly set into the gun, and the magazine fits properly.

    7. Use the 6m 6mm set screw in place of the barrel retaining screw.  Tighten it down, but just snug it up.  Too much pressure could compress the O-Rings on the far side and cause accuracy problems later. (at least that's what I'm told)

    8. air up the gun, go shoot.  Sadly, that won't happen till next Saturday.

    At least it's installed and ready for me to do a bit of chrony work, and make sure it's all working.

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