nicknsd1978 Posted December 5, 2021 Report Share Posted December 5, 2021 I have bought a used BSA ultra se and unbeknown at the time it has an extended air cylinder (I’m new to airguns), it currently has a shroud which I want to remove and fit a suppressor/silencer but currently the air cylinder will be longer than a fitted suppressor. I was thinking can you extend the barrel? Quote Link to comment Share on other sites More sharing options...
Rimfireboy Posted December 5, 2021 Report Share Posted December 5, 2021 55 minutes ago, nicknsd1978 said: I have bought a used BSA ultra se and unbeknown at the time it has an extended air cylinder (I’m new to airguns), it currently has a shroud which I want to remove and fit a suppressor/silencer but currently the air cylinder will be longer than a fitted suppressor. I was thinking can you extend the barrel? If you did fit a longer barrel the power would increase significantly, so you’d need to reduce hammer tension to keep it down to 12ft lbs. Quote Link to comment Share on other sites More sharing options...
Ultrastu Posted December 5, 2021 Report Share Posted December 5, 2021 There used to be available a 50mm barrel extension that just screwed onto the threads (not rifled ) from xtx .made exactly for this problem .unfortunately these aren't for sale anywhere any more to the best of my knowledge . An easier solution , to stop the mod fouling the extended airtube is to ever so slightly lift the end of the breach block with a very thin shim .which raises the barrel in relation to the air tube .and hence your mod will clear it . This is what I've done with my ultra . Quote Link to comment Share on other sites More sharing options...
nicknsd1978 Posted December 5, 2021 Author Report Share Posted December 5, 2021 Hi ok I’ll have a look at that. It was more the “length” issue in that the air cylinder will still protrude beyond the end of the mod Is this the type of thing you were mentioning with the xtx?….https://www.bestfittings.co.uk/shop/general-accessories/airgun-silencer-adaptors/screw-on-type/1-2-20-unf-male-to-female-silencer-barrel-extension-16mm-diameter-38mm-or-50mm-extension/ Quote Link to comment Share on other sites More sharing options...
Ultrastu Posted December 5, 2021 Report Share Posted December 5, 2021 Yeah .wow .I didn't know best fittings did those. Bsa barrels are 15.5 mm but I doubt an extra 0.5 of a mm will ruin the looks . I would upload some pics of my ultra but for some reason I can't do that at the moment. The add files button below isn't working . If you want more info on how to lift the breach pm me . Oh reading your last post again .how long is the extended air cylinder .? A bsa or hw mod is usually around 200 - 220 mm long. That must be a long air tube ? Quote Link to comment Share on other sites More sharing options...
nicknsd1978 Posted December 5, 2021 Author Report Share Posted December 5, 2021 It’s measuring 330m The shroud measures 370mm Quote Link to comment Share on other sites More sharing options...
nicknsd1978 Posted December 5, 2021 Author Report Share Posted December 5, 2021 It’s an air-fective carbon fibre shroud that’s on it so I’m wondering if they have also supplied the air cylinder Quote Link to comment Share on other sites More sharing options...
oldypigeonpopper Posted December 6, 2021 Report Share Posted December 6, 2021 Hello, just buy that adapter and fit the silencer, I cannot see any need for barrel shrouds, Quote Link to comment Share on other sites More sharing options...
Mice! Posted December 6, 2021 Report Share Posted December 6, 2021 14 hours ago, nicknsd1978 said: It’s an air-fective carbon fibre shroud that’s on it so I’m wondering if they have also supplied the air cylinder So what's wrong with the shroud?? Is it just about the overall length? Quote Link to comment Share on other sites More sharing options...
nicknsd1978 Posted December 6, 2021 Author Report Share Posted December 6, 2021 Nothing wrong with it and after looking on the “air-fective” website I’m sure it’s one of the best you can get, I just really love the look of a rifle with a mod on the end. My own stupid fault for jumping in feet first although it’s not a bad thing having the bigger cylinder I suppose Quote Link to comment Share on other sites More sharing options...
Mice! Posted December 6, 2021 Report Share Posted December 6, 2021 1 hour ago, nicknsd1978 said: Nothing wrong with it and after looking on the “air-fective” website I’m sure it’s one of the best you can get, I just really love the look of a rifle with a mod on the end. My own stupid fault for jumping in feet first although it’s not a bad thing having the bigger cylinder I suppose More shots and it should be quieter with the shroud than a Mod, give it a chance you may just like it. Quote Link to comment Share on other sites More sharing options...
oldypigeonpopper Posted December 7, 2021 Report Share Posted December 7, 2021 (edited) Hello, what have you decided on with the Ultra, ? Edited December 7, 2021 by oldypigeonpopper Quote Link to comment Share on other sites More sharing options...
nicknsd1978 Posted December 8, 2021 Author Report Share Posted December 8, 2021 Hi nothing as of yet. Other than raising the breach I don’t think I can do a great deal so just continuing to use the shroud which to be fair there isn’t anything wrong with it I’m just not a huge fan of how it looks Quote Link to comment Share on other sites More sharing options...
Biffo1262 Posted October 6, 2023 Report Share Posted October 6, 2023 On 05/12/2021 at 20:07, Ultrastu said: There used to be available a 50mm barrel extension that just screwed onto the threads (not rifled ) from xtx .made exactly for this problem .unfortunately these aren't for sale anywhere any more to the best of my knowledge . An easier solution , to stop the mod fouling the extended airtube is to ever so slightly lift the end of the breach block with a very thin shim .which raises the barrel in relation to the air tube .and hence your mod will clear it . This is what I've done with my ultra . That may make it prone to leaks from the seals on the transfer port and will certainly allow water and muck in. Quote Link to comment Share on other sites More sharing options...
GingerCat Posted October 6, 2023 Report Share Posted October 6, 2023 If it works I'd leave it alone. Possibly an excuse for another one? Quote Link to comment Share on other sites More sharing options...
Ultrastu Posted October 6, 2023 Report Share Posted October 6, 2023 2 hours ago, Biffo1262 said: That may make it prone to leaks from the seals on the transfer port and will certainly allow water and muck in. Nah .it doesn't Quote Link to comment Share on other sites More sharing options...
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