Silencers / Moderators

[Guest buster321c]

Ive decided to redo the internals on my silencer/moderators ,ive messed with a couple , an AA and a BSA , not making them fantastic ,but a definate improvement on both . Now i had the idea to strip the AA one out this week and do it again to get it even better than ever , so i want to know any tips you have . Ive thought that i would try with a longer tube on it to start with , maybe even a plastic one ( would it make a difference ?) Now my S400 is at my mates and i dont want him messin with it to try to measure it so if anyone can give me the internal diameter and the length of the standard AA one , its appreciated . If i have the internal size i can use the ends off the AA one ( hav`nt got the tapered end off one before so any tips ? ) I know it needs a series of chambers eg- larger (counting from the muzzle) first chamber, then a smaller second chamber and a small (about 10 mm) 3rd and medium 4th chamber. No two chambers are the same size. And aswell as using a sound deadning material in the `tube ` i would glue some to each side of the baffles , to help reduce noise . The baffles are also something i could do with a size for ( so if anyone wants to measure up their silencer its appreciated -internal size - baffle diameter - baffle hole size ) .So if you`ve done anything that worked for you lets hear it and i`ll try to put it to good use . Not sure if i`ll be able to get hold of a sound meter to measure the decibels , but i`ll try , and if i can i`ll let you all know the end result .

 

 

Somebody i know sent me this info on a HW silencer that had been taken apart -

 

I recently took my Weihrauch silencer apart, in order to confirm or deny report of the inclusion of HAIR CURLERS in the construction.

I can now confirm the construction as containing two and a half pink hair curlers .

Around each piece was a wrap of reasonably high density polyester wadding.

The arrangement is as follows:

Curler (64.5mm. long x 21mm. od)

thin steel washer with 7mm hole

Curler (32mm. long x 21mm. od)

thin steel washer with 7mm hole

Curler (64.5mm. long x 21mm. od.)

 

The internal diameter of the silencer is 27mm.

 

 

So like i say , any info , help , or links would be greatly recieved , cheers Buster.

[mad-andy69 0]

dabbled in this once or twice some time ago and found that once you get the baffle size (intenal diameter) keep front and rear spacer washers make an aluminium or plastic tube with a tripple helix of holes evenly drilled all the way round then if you angle the baffle holes with a file backwards slant first hole forwards slant every alternate hole and re pack with motorcycle exhaust wadding followed with cotton wool loosly wrapped then re-assemble you can achieve a 35-60% reduction on the original noise suppression design maybe more also duraglit wadding can also do the same trick if you have an old silencer try it as is then packed out with wadding first and see if just that works for you best experementing on an old one than a new one then once you master the knack try it on a new one. plastic works best for precharged :thumbs:

[andyfr1968 772]

Bugger....

I've spent 40 quid (twice) on a bit of ally tube with a thread on and some pink hair curlers inside.

And they say the Germans don't have a sense of humor.

Yeah, right.

 

Cheers........

[ironman andy 0]

I used blue curlers on the one I made, better sound reduction

For the wadding I used scotch brite pad (70 pence a pack of four from ASDA).

 

 

Regards

Andy

[Grim Reaper 1]

Ive decided to redo the internals on my silencer/moderators ,ive messed with a couple , an AA and a BSA , not making them fantastic ,but a definate improvement on both . Now i had the idea to strip the AA one out this week and do it again to get it even better than ever , so i want to know any tips you have . Ok . . .

 

Ive thought that i would try with a longer tube on it to start with , maybe even a plastic one ( would it make a difference ?) Not greatly so, no mate - it's all about the length and breadth of the mod - you need to be careful so you don't get the pellets scraping the mod on the way out (say, if it is too long, like?) bud.

 

Now my S400 is at my mates and i dont want him messin with it to try to measure it so if anyone can give me the internal diameter and the length of the standard AA one , its appreciated . If i have the internal size i can use the ends off the AA one ( hav`nt got the tapered end off one before so any tips ? ) Boil your kettle up, pour it in a mug, and hold the mod end with the conical shape into the boiling water for a min or two (this will soften and eventually break the grip of the superglue/ thread lock that is in there), then hold that conical end in a tea towel and twist the mod - it can be slow but WILL work, I assure you - i have done it myself.. The conical end will come off and you can clean up the threads with a bit of acetone or nail varnish remover

 

I know it needs a series of chambers eg- larger (counting from the muzzle) first chamber, then a smaller second chamber and a small (about 10 mm) 3rd and medium 4th chamber. No two chambers are the same size. I think you'll find that the int measure of the AA mod is an inch? not sure now since having the Wierarch mod i have misplaced the AA one.

 

And aswell as using a sound deadning material in the `tube ` i would glue some to each side of the baffles , to help reduce noise . If you buy a few of them green scratchy washing up scouring pads - they will work very well for the sound mod medium, bud. Also, personally I wouldn't bother too much at all with bonding any sound mod stuff to the washers - the sound stripping qualities of the washers themselves will be somewhat less effective then Buster mate

 

The baffles are also something i could do with a size for ( so if anyone wants to measure up their silencer its appreciated -internal size - baffle diameter - baffle hole size ) .So if you`ve done anything that worked for you lets hear it and i`ll try to put it to good use . Not sure if i`ll be able to get hold of a sound meter to measure the decibels , but i`ll try , and if i can i`ll let you all know the end result . I would say that why not go with the chamber sizes of the wierarch mod, or at least base your number of chambers and their respective sizes on the Wiearch one - tried and tested technology there matey .

 

 

Somebody i know sent me this info on a HW silencer that had been taken apart -

 

I recently took my Weihrauch silencer apart, in order to confirm or deny report of the inclusion of HAIR CURLERS in the construction.

I can now confirm the construction as containing two and a half pink hair curlers .

Around each piece was a wrap of reasonably high density polyester wadding.

The arrangement is as follows:

Curler (64.5mm. long x 21mm. od)

thin steel washer with 7mm hole

Curler (32mm. long x 21mm. od)

thin steel washer with 7mm hole

Curler (64.5mm. long x 21mm. od.)

 

The internal diameter of the silencer is 27mm.

 

 

So like i say , any info , help , or links would be greatly recieved , cheers Buster.

 

 

I hope the blue text above is of some help to you bud, I too have taken my AA mod apart and cleaned it out - what i did find is that it wasn't quite as good (on the internal workings front) as i had at first hoped it was - cheap materials, and not brilliantly put together in my opinion.

 

Totally unlike the Wierarch mod, of course - am well happy with that purchase.

 

 

 

Regards,

Grim.

Edited May 5, 2009 by Grim Reaper

[Guest buster321c]

my hero

[Guest buster321c]

Ive decided to redo the internals on my silencer/moderators ,ive messed with a couple , an AA and a BSA , not making them fantastic ,but a definate improvement on both . Now i had the idea to strip the AA one out this week and do it again to get it even better than ever , so i want to know any tips you have . Ok . . .

 

Ive thought that i would try with a longer tube on it to start with , maybe even a plastic one ( would it make a difference ?) Not greatly so, no mate - it's all about the length and breadth of the mod - you need to be careful so you don't get the pellets scraping the mod on the way out (say, if it is too long, like?) bud. Ok mate thats good as i can get my hands on some plastic tube easily

 

Now my S400 is at my mates and i dont want him messin with it to try to measure it so if anyone can give me the internal diameter and the length of the standard AA one , its appreciated . If i have the internal size i can use the ends off the AA one ( hav`nt got the tapered end off one before so any tips ? ) Boil your kettle up, pour it in a mug, and hold the mod end with the conical shape into the boiling water for a min or two (this will soften and eventually break the grip of the superglue/ thread lock that is in there), then hold that conical end in a tea towel and twist the mod - it can be slow but WILL work, I assure you - i have done it myself.. The conical end will come off and you can clean up the threads with a bit of acetone or nail varnish remover. This a bit of good news because i wanted to try it with a longer tube on the moderator than there already is , and have a few more chambers . The AA one has 2 chambers , HW 4 , and at some stage i wanted to try 6

 

I know it needs a series of chambers eg- larger (counting from the muzzle) first chamber, then a smaller second chamber and a small (about 10 mm) 3rd and medium 4th chamber. No two chambers are the same size. I think you'll find that the int measure of the AA mod is an inch? not sure now since having the Wierarch mod i have misplaced the AA one. Its an inch mate , been on it with the digital vernier today , 1 inch internal Dia and 130 mm long .

And aswell as using a sound deadning material in the `tube ` i would glue some to each side of the baffles , to help reduce noise . If you buy a few of them green scratchy washing up scouring pads - they will work very well for the sound mod medium, bud. Also, personally I wouldn't bother too much at all with bonding any sound mod stuff to the washers - the sound stripping qualities of the washers themselves will be somewhat less effective then Buster mate The Scotch brite pads are what im after , i can get these , and ive been told that a polished surface bounces the sound , so i`ll go with a polished washer to start with , to bounce the sound back into the chambers .

 

The baffles are also something i could do with a size for ( so if anyone wants to measure up their silencer its appreciated -internal size - baffle diameter - baffle hole size ) .So if you`ve done anything that worked for you lets hear it and i`ll try to put it to good use . Not sure if i`ll be able to get hold of a sound meter to measure the decibels , but i`ll try , and if i can i`ll let you all know the end result . I would say that why not go with the chamber sizes of the wierarch mod, or at least base your number of chambers and their respective sizes on the Wiearch one - tried and tested technology there matey . Good idea Just gotta get the bits together ( some washers and a bit of tube ) and im well away . It`s always good to bounce ideas about , many hands make light work and all that

 

 

Somebody i know sent me this info on a HW silencer that had been taken apart -

 

I recently took my Weihrauch silencer apart, in order to confirm or deny report of the inclusion of HAIR CURLERS in the construction.

I can now confirm the construction as containing two and a half pink hair curlers .

Around each piece was a wrap of reasonably high density polyester wadding.

The arrangement is as follows:

Curler (64.5mm. long x 21mm. od)

thin steel washer with 7mm hole

Curler (32mm. long x 21mm. od)

thin steel washer with 7mm hole

Curler (64.5mm. long x 21mm. od.)

 

The internal diameter of the silencer is 27mm.

 

 

So like i say , any info , help , or links would be greatly recieved , cheers Buster.

 

 

I hope the blue text above is of some help to you bud, I too have taken my AA mod apart and cleaned it out - what i did find is that it wasn't quite as good (on the internal workings front) as i had at first hoped it was - cheap materials, and not brilliantly put together in my opinion.

 

Totally unlike the Wierarch mod, of course - am well happy with that purchase.

 

 

 

Regards,

Grim.

 

 

Just wait till you see the Bustamod , it`ll be crap LOL , cheers pal , speak to you soon

[Grim Reaper 1]

Clever sod - you, ain'tcha pal! Getting all fancy now - with the red text to match my blue bits . . .

 

You'll be making them bloody flash next, knowing you!!

 

With you - most impressed am I, my young Padawan!

 

 

But seriously though, no worries Buster - anytime, you know where I am.

 

 

 

Regards,

Grim.

[tynoprime 0]

I shall risk sounding like a fool - give me optics and I'll rant, sound suppressors and I fall silent (mind the pun) - has anyone tried using something like rockwool as wadding? Or even a packed rockwool silencer with just a channel for the pellet and four or so chambers?

Edited May 7, 2009 by tynoprime

[Guest buster321c]

Just to give you an idea what other people are trhinking , here`s some post`s from the AA site -

 

 

instead of using steel washers, how about rubber or fibre ones to absord the sound vibrations and save them extra few grains.

 

 

Seen somewhere that sound will bounce off a high shine polished surface and because of this a polished insides of a moderator would improve results by returning some sound back into the tube.

Not sure if it would work but possibly worth looking into.

 

 

I think the idea is that each time sound hits something, like the wadding, it splits and reduces.

By having a polished inside to a mod it would return some of the sound back to the wadding to be reduced even further.

Some day I will polish the insides my mods just to see if it makes a great deal of difference.

 

 

i think that having the inside sand blasted and filled with expandable foam, which will then be bored out and filled with the other internals.

this will be the ultimate silencer, all you need now is a silent hammer and spring for the action.

 

 

I've worked in an anechoic chamber, which is a chamber designed to attennuate sound. It is weird as one feels a pressure on ones ears because there is not echo or reflection of any sound. The walls of these chambers are a series of rigid foam pyramids designed to absord the sound and by their shape prevent what little echo there is reflecting back at the origin of the sound. I would think that a good copy would be a rigid foam cyilinder with a hole moulded in it that looked like the shape of a flexible vacuum cleaner pipe. A wooden mandrel could be turned up to make this shape of the hole then the foam moulded around this in a plastic tube. The whole lot could then be cut in half with a stanley knife to remove the mandrel The foam could then be glued back together and turned to fit the diameter of the metal silencer tube.

 

ive heard a few custom silencers but as yet never heard one as quiet as the weihrauch... how do those germans do it?

i was bored one day so i decided to make a push on silencer extension, it more than doubled the length of my AA silencer, it had baffles and allsorts in it, but for the added length and added baffles etc, it diddnt really do anything for the sound.. it just deadend the thud a bit, still no where nier the german made ones

 

 

i am surprised that they dont make silencers out of other materials instead of metal these days.

how about a small but fat one with thin but large diameter chambers filled with that pick n pluck type foam stuff.

I think it is nothing to do with the length of silencer that makes it better, it is the area of the chambers

 

 

I`ll be messing with this soon but some snares ive brought have just turned up , so typically there the latest toy to play with then i`ll be back on the Mod / Silencer