http://www.happynanoq.dk/silencer/

Looks very professional compared to the 'homeshop' or 'homebench' silencer made from pvc pipes and coke cans.

I hadn't seen that webpage before, thanks for sharing.


I wouldn't have thought of using a maglight body, but thinking about it more it seems like the perfect item to start with.

Looking at the suppressor design, looks like it could easily be made. One question, I have a 1/2 unf 28tpi die set from dynasystems, but does anyone know where to get a 1/2 unf 28tpi tap? Thanks

I must agree with Third_Rail, a maglight body would be a perfect item to use; I had done a bunch of research at the US Patent and Trademark Office (http://www.uspto.gov/) and found several interesting designs, but this one seems to surpass them all in ingenuity.

I do have one question though... How did you make/acquire the "nylon / delrin rod" that you used for the central baffling? Was it a solid piece that you carved and drilled? Thanks in advance for answering...

Anyone else getting a server error when trying that link?

Anyone else getting a server error when trying that link?

Yes, same with me, couldn't find server.

As to using a Maglite body as a supressor tube, well this seems a bit expensive to me. Why doesn't he use a normal Al-tube? Al-tubes are available in any imaginable size at reasonable prices, certainly much cheaper than a Maglite.

If you get the page to load, you will see that he makes good use out of the internals of the maglight body, including the threading, the battery cap, and the spring. Plus it's 'prettier' than a standard piece of AL Tubing and has 'built-in' grip for tightening and loosening it...

Here is the google cache: http://64.233.167.104/search?q=cache:B4nooZznmJgJ:www.happynanoq.dk/silencer/+&hl=en&client=firefox-a

btw delrin seems pretty expensive ...

Right now I'm trying to do it on a M4/AR15, I don't know if the aluminium body will be enough for the pressure of a 223 round. Most 223 silencers are 300 series stainless steels.
http://www.advanced-armament.com/products/rifles/ranger.asp
http://www.gem-tech.com/m4-96d.html
http://www.impactguns.com/store/knights_m4qd_silencer.html

The delrin rod can be bought from several places. Be sure to measure the inner diameter of the maglight and then order one a little smaller. I used the diameter of a d-cell which is about 32.3~34.2mm which is about 1 5/16 inch.

Just do a google search for delrin. Also, when you order, there is minimum cost, so be sure to add extra feet to the length. I ended up getting 3 feet for the same as a foot, just because of the minimum cost.

I had a similar problem viewing the link, it timed out.

I remember searching google a few months ago on silencer designs, and reached a website which involved making silencers from maglite torch casings, this may be the same one, or a different site, running on the same idea.

They looked quite impressive, and could be dissasembled for cleaning by unscrewing the battery cover.

Is this the same thing?

And IIRC, the guy was trying to sell them from his website.

As to using a Maglite body as a supressor tube, well this seems a bit expensive to me. Why doesn't he use a normal Al-tube? Al-tubes are available in any imaginable size at reasonable prices, certainly much cheaper than a Maglite.

Maybe the maglite could be reassembled later to disguise the silencer, they are illegal in a lot of countries aren't they?

Maybe the maglite could be reassembled later to disguise the silencer, they are illegal in a lot of countries aren't they?

That maglite will never be re-assembeled again- He's used a lathe to cut away the end with the switch button and permanently affixed the barrel end bushing where it once was.

Nice design making use of OTC product- and maglites come up to 6-"D" cell.

BTW, link worked fine for me.

The most interesting thing is the delrin part. But yes if I had too small a brain and too much money I would use a very heavy Al-Tube from a Maglite to make a supressor for a .22 l.r. Btw. this strenght of Al-tubing would be allright for the .223 Remington.

Buying a knurling tool would probably be cheaper and he could make more nice looking supressors for all his other rifles as well.

My guess is any Al-tubing is pretty much OTC, well maybe not the Al-tubes used in gasultracentrifuges.

I dont see why it couldnt be made to look like the regular maglite. Concealment is handy in any case.

just use a led and button batteries to give the illusion that the maglite was still just an operational flashlight (illustration below)

<a href="http://img115.exs.cx/my.php?loc=img115&image=silenceedit0jx.jpg" target="_blank"><img src="http://img115.exs.cx/img115/5702/silenceedit0jx.th.jpg" border="0" alt="Free Image Hosting at www.ImageShack.us" /></a>

If the delrin rod won't hold the pressure of a 5.56mm NATO round, why not use a piece of aluminum or stainless steel and just lathe it out?

Two years ago I made a supressor for my Remington 597 .22LR out of a 3 D-cell Maglite that was gathering dust. I spent about six months designing it to perform as well or better than what was on the market.

The common link I found in all the designs I looked at was the ratio between the gas volume generated by the powder charge, the bore volume, and the internal volume of the supressor. This ratio (wich I call the expansion factor) ranged from 13 - 17. My design has an internal volume of 11.19 in3 across 13 baffles, giving it an EF of 13.

The baffles were made from aircraft aluminum stock and the spacers were turned and bored from stock PVC pipe. The muzzle adapter was made from the same aluminum as the baffles and was tapped with 1/2-28 UNF threads. The rifle muzzle was CNC machined to ensure less than .005" TIR runout.

I still have the Excel spreadsheet and Solidworks files if anyone is interested.

Even though the 597 is a semi-auto, this supressor preforms extremely well wet or dry. All that you hear is the hammer and the round impact when using Dynamit Nobel subsonic .22LR ammo. At 100 yards without the supressor, groups average .75". With the supressor, groups average .5".

This HappyNanoq doesn't seem to be utilising the maglites internal volume to its full potential and the more baffled chambers there are, the more effective it will be.

I've been thinking quite a bit on this design and I have to agree with Doggie... though it would not be pretty while on the weapon... if a bushing could be made that would fit INSIDE of the Al-Tubing, it could be placed distal to the rubber of the switch. This way when removed from the weapon, it could have the head of the light screwed back on and a rubber plug placed in the battery cap exit-hole, and voila, a maglite that appears operational but is really a silencer.

BTW, Gedi, thanks for the note about googling for Delrin...since DaedalusX was from Eur, I thought it was a product from there, as I didn't recognize the name...

can find the new site at :rolleyes:

http://www.happynanoq.dk/22lrsilencer/

What's a good place to buy a 1/2x28 tap for such a project?

Also, since everything has to be perfect, when threading the hole, what do you guys reccomend to ensure a perfect perpendicular tapped hole?

Use a lathe, if you have one.

Or chuck the tap in a drill press and use that as a support for turning straight threads.

I'd love to build this suppressor, but I'm hung up! After actually seeing the finished one as well as the various parts, I think I could do it. I'm just hung up on the "bushing" that was used. If someone has a picture or even the plans for this design that shows the bushing, I'd really apperciate it!

Jaxxxom:
I believe I understand the concept of the stainless steel bushing, however, the brass "washer" that attaches to the front of the bushing prior to the nylon tube is a puzzle, although I can imagine several versions. If you understand how that is built to allow for a chamber between the brass washer and the bushing, I'll trade info.

In reviewing old US Patent Office files on firearm suppressors (Patent #4,530,417) it appears that cooling of the combustion gases assists the reduction in sound. Has anyone tried placing aluminum, brass or copper wool (similar to steel wool) in the voids to absorb heat and sound?

pdphill I didn't read that patent file but I think that if they mention cooling of the combustion gases didn't think along the lines you have proposed. They probably meant adiabatic cooling caused by rapid expansion of gases. Maybe fine wool you proposed or find in the patent can play a venting role on side ports of the suppressor(permit uniform passage of gas flow from high pressure to atmospheric but after some specific onset point/pressure). Couple different meshes to compensate for pressure drop through suppressor and I believe you would get fine result. But that design will be too fragile due to materials used.

www.silencertests.com has a great forum.

++++++=

If you're going to provide a link, please be bothered to make it complete, eh? ;) NBK

So far, the best place on the web to find a 1/2 x 28 tpi tap is McMaster -Carr (http://www.mcmaster.com/) industrial supply company. I ordered one and it was at my house in 48 hours after I ordered it. I found another site which is slightly cheaper but will have to dig through my pc to find the link. Hope this helps guys.

After reading pdphill's comment regular window screen or steel wool can help on absorbing the heat that is generated, roll it around a wooden dowel or similar item. You should also smear white lithium grease on the screen or steel wool to further reduce the heat generated by the shot. In turn it reduces the sound.