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Advice New Silencer Time

Discussion in 'Anything Airgun Related' started by Bwarnos, Feb 9, 2012.

  1. Bwarnos

    Bwarnos Busy Member

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    Hi all,

    I have come to the conclusion that I need a quieter silencer. I have heard a few and mine seems a bit 'thudyer' (new word), I have read Jay Jay's report on silencers which was helpful as the same silencers differ in sound on different guns.

    I have a Air Arms 10mm slip on at the moment and I was wondering what others use and would suggest that own Air Arms?

    Cheers
    :D
     
  2. Oilysean

    Oilysean Very Active

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    One of matty's on this very fine forum. Great bloke and top notch craftsmanship.
     
  3. Bwarnos

    Bwarnos Busy Member

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    Do you have a link Oily?
     
  4. Oilysean

    Oilysean Very Active

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  5. tatsumi

    tatsumi Big Poster

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    Matts are very good yes, i modded my 10mm AA silencer with good results so kept mine :)
     
  6. Bwarnos

    Bwarnos Busy Member

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  7. Bwarnos

    Bwarnos Busy Member

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    Wish I new how, is it easy?


    Sent from my Iphone using Taptalk
     
  8. GIRLYPANTS

    GIRLYPANTS Banned BANNED

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    I use a Twink on my AA, its a great silencer
     
  9. sn1per

    sn1per Engaging Member

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    Me too, quieter than a silent fart!!!
     
  10. mark.177

    mark.177 Donator

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    i re packed my air arms moderator and now its a lot quieter, so much so it puts my mates fully shrouded hw100 to shame.
    inside is this brillo pad material trouble is it doesnt fill the moderator with gaps around the edge front and back. i re packed it with foam so now its filled. made h@ll of a difference! mines a .177 so i reduced the size of the exit hole with some plastic tube epoxied in.

    first two pics show whats inside as standard (there is another partition inside the mod that i hadnt removed yet in the first pic) last two show it with the new packing, the last pick shows the differance between the original on top and the new piece of foam bottom
     

    Attached Files:

    Last edited: Feb 17, 2012
  11. mark.177

    mark.177 Donator

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    i also drilled 8 small vent holes evenly around the circumference at the beginning of the first and second section angled rearward to vent some of the gas rearwards reducing the pressure/sound venting out the front.
    i subsequently covered the rear 4 holes for the first section as arnt necessary
     

    Attached Files:

    Last edited: Feb 17, 2012
  12. knighty

    knighty Banned BANNED

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    i second that got one on my AA s410 its mint
     
  13. Fisherboy

    Fisherboy Engaging Member

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    Mark.177, hi there, gonna have a go at this mod and just wondered what type of foam you used? Also I know that the moderator unscrews from the barrel end but does it unscrew from the muzzle end or do you just pop it off? Can't really tell from the pics as using phone. Also how tight do you pack it in? What sort of density is the foam? Any help would be appreciated. Thanks, James
     
  14. mark.177

    mark.177 Donator

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    it should unscrew both ends, however it will be tight due to a thread lock being used. i thought mine wasnt supposed to unscrew as was so tight! i used a strap type jar opener to get a grip in it and managed to break the thread lock bond.
    the foam was 10 or 12mm thick and though aerated was quite heavy and squidgy (if that helps) got it out of a motorcycle jacket back protector pocket when replacing it with hard foam.

    i replaced the plastic (stocking like) blue sleeve then cut the foam to fit a little larger than the length needed to wrap fully around the spring and sleeve. i held it on with cotton wrapped around to make it easier to push back into the moderator.

    basically all i've done is replace the under sized baffling with something that fills the inside with no large voids because before there was at least an inch either end with no baffling and it didnt wrap all the way round leaving another gap running down the length of the mod inside.

    the end result was to deaden the crack even more and reduce the "ping" coming from the spring inside the mod as its now better dampened.

    i dont know for sure how many decibels quieter it is but it is certainly noticeably quieter than any other mod i've seen used! the only thing that could improve it now would be a bigger internal area and more foam.
     
  15. Accuspell

    Accuspell Major Poster

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    To help loosen the end, heat the cap with a hair dryer, or if you have one a hot air gun used fo rstripping paint - BE CAREFUL WITH THE HEAT GUN Aluminium melts at low temperature. You could also loosen the glue/thread lock with boiling water - boil the kettle and pour it over the TUBE OF THE BODY, not the cap. That will expand the body a bit and give you that bit of help to break the bond.

    My AA has also been modded, but i used proper felt instead of foam - I don't think it matters. I shall do mark's tip of reducing the exit though. Great idea! Thanks.
     
  16. mark.177

    mark.177 Donator

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    the holes drilled at a rearward angle at the rear of the final section helps reduce the noise as well, you can here a soft "phffft" like blowing through a straw coming from them. with the combination of side vent holes andreduced exit hole (used a felt tip pen) there is hardly any noise coming from the front of the rifle travelling down range. i dont notice the benifit of the holes when firing but it makes a big difference if your standing just 20 yards down range!

    i tried felt and a combination of felt and foam but the foam worked best on its own.
     
  17. mark.177

    mark.177 Donator

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    it seems theres no end of fancy after market moderators available that cost a fortune but in the end some decent baffling and a few mods to mine has bettered or at least equalled any you can buy!
     
  18. mark.177

    mark.177 Donator

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    my first attempt was an "add on" mod but it was way too heavy, long and impracticable, though it did give me chance to try a few things before messing with my aa mod... made it very quiet!

    used old film canisters, tape, foam, epoxy resin and an antiseptic spray bottle to make a lighter one as the first was made from an old maglite lol

    you can see on the metal "maglite" one i tried drilling rearward facing holes which later made it onto my aa mod as worked quite well.
     

    Attached Files:

    Last edited: Feb 18, 2012
  19. The Robin

    The Robin Super Moderator Staff Member Mod/Admin

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    I have had loads silencers on different rifles and matts are very good and he can make pretty much what you need and want.

    On the other silencers i have had the Twink mk2 is the best followed by the HW
     
  20. mark.177

    mark.177 Donator

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    my .177 s400 with modded aa mod is now quieter than the hw one on a shrouded hw100 .22! and at least as quiet as the twink! though without a decibel meter i cant prove it lol
     

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