Suppressors baffle upgrade/rebuild

B

black_ump

Gunny Sergeant
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Jul 16, 2007
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#1
I bought an AAC defender 45 last night ( hk ump suppressor ) it has been used and from the sounds of it allot. Curious to know if any one knows of a company ( besides liberty ) that rebuilds suppressors ?

I would like to shoot the suppressor and see how it performs and then 6 months or so from now have the baffles upgraded. I emailed AAC about this and they said they dont carry parts or any thing like this for this model of suppressor any more

any help would be cool
 
#2
Re: baffle upgrade/rebuild

I would say its going to cost you as much or more to rebuild it then it would to buy a new one. My guess is based on the fact that you said AAC doesn't have parts anymore which means you would have to find a Class 2 Manufacture who is willing tear it apart, and custom make you knew baffles. With that said, I dont know if they are legally allowed to due so since they are not the original manufacture. Also, if the design is patented, then there would probably be some issues with patent infringement if they cut a patented baffle even if it was to repair your can.
 
#3
Re: baffle upgrade/rebuild

they are not allowed to do so. Several years ago the ATF stopped allowing rebuilds and repairs. I had a similar problem and had to go through the ATF paperwork NFA process. It was a rebuild of a AAC 7.62 SD through my own fault. AAC was great but it was the whole process-6 months later it was all good. Shoot the one you have and buy a new one.
 
#4
Re: baffle upgrade/rebuild

cannot buy a new one as stated they dont make them any more for the hk ump. gemtech has one but idk how i feel about it... i have read allot of mixed reviews


how does liberty get away with updating other brands of suppressors with different baffles
 
#5
Re: baffle upgrade/rebuild

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: black_ump</div><div class="ubbcode-body">how does Liberty get away with updating other brands of suppressors with different baffles?</div></div>

If they keep it up, then they will get a visit and likely have their FFL/SOT revoked.
 
#7
Re: baffle upgrade/rebuild

what-really-grinds-my-gears.png


So you bought a used suppressor last night, a well used suppressor apparently. Assuming you waited the 4 months for the transfer, did you shoot it before buying, ask about the round count, call ACC about a potential rebuild before buying a discontinued can, any due dilligence before buying?

Your new name in our clan will be "PUCK," because you seem to set yourself up with every thread to be slapped with a big stick.
 
#8
Re: baffle upgrade/rebuild

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Witch Doctor</div><div class="ubbcode-body">
what-really-grinds-my-gears.png


So you bought a used suppressor last night, a well used suppressor apparently. Assuming you waited the 4 months for the transfer, did you shoot it before buying, ask about the round count, call ACC about a potential rebuild before buying a discontinued can, any due dilligence before buying?

Your new name in our clan will be "PUCK," because you seem to set yourself up with every thread to be slapped with a big stick. </div></div>
actually jiz bag , i did call them this morning and they said they can put new baffles in it, just though maybe their was a better option out their, they said they dont have many parts left to rebuild the locking devices how ever.

so take your hockey bullshit some where else


edit: and if i just bought it last night via over gunbroker then no i didnt shoot it didnt hold it and have not waited 4 months
 
#10
Re: baffle upgrade/rebuild

Some false information in this thread, as long as the serialized part of the silencer is not lengthened or replaced all other may be replaced by any licensed gunsmith.

I doubt any upgrade would make it quieter. Take the silencer to a local vet and have him Xray it. You can easily see any deposit build up in the silencer. I think it is fine.
 
#13
Re: baffle upgrade/rebuild

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Outsy</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Alderleet</div><div class="ubbcode-body">Who buys used suppressors? </div></div>

dumbasses or collectors </div></div>

He's not dumb for buying it, the person he bought it from is dumb for selling it, you cannot get your money back from the tax stamp, so the seller takes a loss on the can and loses there 200 dollar tax stamp.
 
#15
Re: baffle upgrade/rebuild

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: 427Cobra</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Outsy</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Alderleet</div><div class="ubbcode-body">Who buys used suppressors? </div></div>

dumbasses or collectors </div></div>

He's not dumb for buying it, the person he bought it from is dumb for selling it, you cannot get your money back from the tax stamp, so the seller takes a loss on the can and loses there 200 dollar tax stamp. </div></div>

You'd be surprised what some Stamp Collectors will pay for an NFA stamp to add to the collection. Especially in states like CA, NY, NJ, etc where they can't get one via the usual process, I've heard of collectors paying upwards of 4 figures for a stamp.

If I ever have to give up something of mine like that you better be sure I'm selling the stamp off to get my tax money back.
 
#16
Re: baffle upgrade/rebuild

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: B. Melick</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: black_ump</div><div class="ubbcode-body">how does Liberty get away with updating other brands of suppressors with different baffles?</div></div>

If they keep it up, then they will get a visit and likely have their FFL/SOT revoked. </div></div>

Why are they likely to have their FFL/SOT revoked?
 
#17
Re: baffle upgrade/rebuild

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: B. Melick</div><div class="ubbcode-body">If they keep it up, then they will get a visit and likely have their FFL/SOT revoked. </div></div>

What is the source of legal/regulatory authority that the ATF is relying on for support of their position that you cannot repair a damaged suppressor? My reading of the FAQs from BATFE's own site seems to permit "repair" of a damaged suppressor under very specific circumstances with certain limitations:

http://www.atf.gov/firearms/faq/national-firearms-act-silencers.html
 
#18
Re: baffle upgrade/rebuild

..

David nailed it..

Ok, so we can put this one to bed. Suppressors are repaired and upgraded every day. In the good old days, every component part of the suppressor could be worked on, hell people bought the internals on-line for chump change as "replacement parts", in fact collectors would have the internals of their cans returned to them when cans were upgraded to keep as a collectable....then came Gemtech. That which is regularly refered to as the "Gemtech Tax or Gemtax" refers to a decision brought about because of Gemtech replacing the outside envelope (the stamped tube) with a likeness of the another companies "original markings" when they went about repairing and upgrading other manufactureres cans. In other words, the same serials numbers rolled on two different cans. Boom! Down came the hammer. Change the tube, pay $200 Gemtax.

1. Suppressors internals are rebuilt to original spec every day by approved facilities.

2. Suppressors internals are upgraded every day by approved facilitied.

The orignal envelope cannot be replaced and all dimensions must remain the same. On the AAC rebuild, probably what you are experiencing is if, in the construction of the can, the welding spec/end cap design disallows the manufacturer to effectively crack the can and remove the baffles without destroying the envelope, well, it would cost you $200 to fix on top of all the work/parts/labor. That and x months wait for approval.

Witch Dr. is absolutely right, never buy a can that you don't hear yourself, better yet shoot on your rifle and see its effect on accuracy.


..
 
#19
Re: baffle upgrade/rebuild

I would call any of the people that are willing to upgrade the baffle stack and ask them a few questions:

1) will they rebuild that baffles and to what standard? better then before or back to as close as they can to factory original.

2) Whats their lead time on the upgrades?

3) what type of warranty do they offer on their work?

4) and finally, whats the price going to be for all of it?

I would say if the cost outweights what you paid for the can then just shoot it as is. And down the road order yourself a new suppressor. If you bought the suppressor from someone out of state they will probably have it on a form 4 and need to transfer it to your dealer. Thats going to take 3-4 months then the transfer from your dealer to you, another 3-4 months. So when you have it 6-8 months later..... Do you really want to send it off again? I bought a can from a guy out of state that had to form 4 it and it took forever. Won't ever go down that road again!
 
#20
Re: baffle upgrade/rebuild

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: RollingThunder51</div><div class="ubbcode-body">..

David nailed it..

Ok, so we can put this one to bed. Suppressors are repaired and upgraded every day. In the good old days, every component part of the suppressor could be worked on, hell people bought the internals on-line for chump change as "replacement parts", in fact collectors would have the internals of their cans returned to them when cans were upgraded to keep as a collectable....then came Gemtech. That which is regularly refered to as the "Gemtech Tax or Gemtax" refers to a decision brought about because of Gemtech replacing the outside envelope (the stamped tube) with a likeness of the another companies "original markings" when they went about repairing and upgrading other manufactureres cans. In other words, the same serials numbers rolled on two different cans. Boom! Down came the hammer. Change the tube, pay $200 Gemtax.

1. Suppressors internals are rebuilt to original spec every day by approved facilities.

2. Suppressors internals are upgraded every day by approved facilitied.

The orignal envelope cannot be replaced and all dimensions must remain the same. On the AAC rebuild, probably what you are experiencing is if, in the construction of the can, the welding spec/end cap design disallows the manufacturer to effectively crack the can and remove the baffles without destroying the envelope, well, it would cost you $200 to fix on top of all the work/parts/labor. That and x months wait for approval.

Witch Dr. is absolutely right, never buy a can that you don't hear yourself, better yet shoot on your rifle and see its effect on accuracy.


.. </div></div>


I bought an aac evo for my hk, it was the first one i ever seen in real life and i never seen it before, vary happy with it.


Yes your are right though in every way, here is my side of the story, these cans arnt popular because of the platform they are used on ( hk ump ) they dont make them any more, so when i seen one for sale i had to get it or miss out on one for who knows how much longer.

i took the chance, the price was right but i do thank you all for the info, because as i have said many many times over, i have vary little on hand experience with this stuff, and all the info is vary much appreciated.
 
#21
Re: baffle upgrade/rebuild

tell me this, how do i go about refinishing the suppressor providing it needed reoxided or what ever ? I know its obviously not good to paint over the serial and all that info so how does ever one else here refinish their suppressors ?
 
#22
Re: baffle upgrade/rebuild

At home you dont have many options. High Heat Cerakote is about your only option. It will hold up just fine. You anodize cans BTW....

You can send it out and have it done is your best bet for a good finish. Anodizing at its completed stage will also put the chemical on the baffles. It wouldn't last long leaving the pieces of it in the can, that could make a boo boo.
 
#23
Re: baffle upgrade/rebuild

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: KYS338</div><div class="ubbcode-body">At home you dont have many options. High Heat Cerakote is about your only option. It will hold up just fine. You anodize cans BTW....

You can send it out and have it done is your best bet for a good finish. Anodizing at its completed stage will also put the chemical on the baffles. It wouldn't last long leaving the pieces of it in the can, that could make a boo boo. </div></div>

ok but what about the lettering ? i would have to tape over the lettering if i Cerakote it. if i have it anodized will that ruin the AAC markings and serials and all that ? and you say the anodizing will come off the baffles inside and..?? cause damage to the suppressor ?
 
#24
Re: baffle upgrade/rebuild

The letters are engraved.....

Unless you plan on putting on 6-8 coats of cerakote you will be fine. Or send it in to AAC and get it refinished. But then again ask yourself..... who cares? Shoot it as is, doesnt matter if it has a few scuffs. My M4-2000 has been thru glass windows and an old wooden door. It melted a bag and I used a knife to scrape all the crud off.
 
#26
Re: baffle upgrade/rebuild

Don't refinish it! Just leave it well enough alone. It is a tool and will show signs of wear/tear, but they won't effect the performance of the can one bit. If the finish bothers you that much, get a suppressor/mirage cover made to fit it and be done.
 
#27
Re: baffle upgrade/rebuild

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: KYS338</div><div class="ubbcode-body">The letters are engraved.....

Unless you plan on putting on 6-8 coats of cerakote you will be fine. Or send it in to AAC and get it refinished. But then again ask yourself..... who cares? Shoot it as is, doesnt matter if it has a few scuffs. My M4-2000 has been thru glass windows and an old wooden door. It melted a bag and I used a knife to scrape all the crud off. </div></div>


shows character lol so ya ill just leave it the way it is until its really messed up
 
#29
Re: baffle upgrade/rebuild

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: KYS338</div><div class="ubbcode-body">If it's really messed up..... get a new can. Pretty simple. </div></div>

the suppressor has been DISCONTINUED it is no longer made its pretty much dead threw AAC, dead as in they almost cannot even repair them.

with that said the only problems i have ever read these suppressors to have are with the locking devices and a tiny little metal ring that once in a while gets bent. AAC said they do have some of the locking rings left so.
 
#30
Re: baffle upgrade/rebuild

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: black_ump</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: KYS338</div><div class="ubbcode-body">If it's really messed up..... get a new can. Pretty simple. </div></div>

the suppressor has been DISCONTINUED it is no longer made its pretty much dead threw AAC, dead as in they almost cannot even repair them.

with that said the only problems i have ever read these suppressors to have are with the locking devices and a tiny little metal ring that once in a while gets bent. AAC said they do have some of the locking rings left so. </div></div>
Why not just get a cover?
 
#31
Re: baffle upgrade/rebuild

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Stefan73</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: black_ump</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: KYS338</div><div class="ubbcode-body">If it's really messed up..... get a new can. Pretty simple. </div></div>

the suppressor has been DISCONTINUED it is no longer made its pretty much dead threw AAC, dead as in they almost cannot even repair them.

with that said the only problems i have ever read these suppressors to have are with the locking devices and a tiny little metal ring that once in a while gets bent. AAC said they do have some of the locking rings left so. </div></div>
Why not just get a cover? </div></div>

i could do that no problem, but seems it would look silly on a sub gun can, but if it works it works i guess
 
#32
Re: baffle upgrade/rebuild

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: black_ump</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Stefan73</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: black_ump</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: KYS338</div><div class="ubbcode-body">If it's really messed up..... get a new can. Pretty simple. </div></div>

the suppressor has been DISCONTINUED it is no longer made its pretty much dead threw AAC, dead as in they almost cannot even repair them.

with that said the only problems i have ever read these suppressors to have are with the locking devices and a tiny little metal ring that once in a while gets bent. AAC said they do have some of the locking rings left so. </div></div>
Why not just get a cover? </div></div>

i could do that no problem, but seems it would look silly on a sub gun can, but if it works it works i guess </div></div>

Wait til you shoot a CQB match with that subgun and are required to run a failure drill and switch to your secondary weapon. When that MF'ing hot can swings down and grills your leg you won't care how silly it looks...

One of my buddies didn't run a cover on his Trident because it looked silly, 1 burn that's 6" long and 1" across on his thigh changed his tune pretty quickly.
 
#37
Re: baffle upgrade/rebuild

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: KYS338</div><div class="ubbcode-body">Your not supposed to run TAB covers on semi auto platforms..... They will melt. I've seen it happen! Tony wont warranty the repair. </div></div>

Oops. I didn't realize that was a problem/concern with the TAB SAS covers. I have run an SAS2 on my POF P-308 with a 762SD and not had any troubles with it melting or otherwise failing but then again, I'm not doing mag dumps or burning through multiple mags in short order with the can/SAS2 installed.

Scratch my recommendation if it won't hold up to the rate of fire of your USC. Sorry for any confusion.

The TAB SAS units are still great product for anyone looking for a mirage cover.
 
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