Suppressor for Sport II

RossDillon · Dec 3, 2017

Can I assume that the flash suppressor on my Sport II can be removed and a silencer installed? If yes, any recommendations or thoughts? I've shot a suppressed AR and loved it, but otherwise know nothing about them (other than they require a stamp and therefore can take forever to get).

cyphertext · Dec 3, 2017

Yes, the flash suppressor can be removed so that a suppressor can be installed.

Others will have to give recommendations, as I don't own any.

ChattanoogaPhil · Dec 3, 2017

There are endless choices. Rather than try to recommend a particular can I'd suggest these considerations.

Weight-- Remember that it will be hanging off the end of the muzzle. Lighter is better IMO (also more expensive).

Attachment method-- Thread-on or QD. Go with QD. Most are designed to perform as a comp/brake when the suppressor is detached.

Don't get hung up on rated db reduction. They'll all perform well enough. Besides, you'll be suffering a supersonic crack anyway... it is what it is.

Some guys are going with 30cal cans that are designed smaller and lighter than a typical 30cal can to use on both 5.56 and 30cal rifles. This is where the QD attachment method really shines to simply move the can around on different rifles.

---> Strongly consider it's a lifetime purchase. This isn't the time to get cheap and not buy the one you really want to save a couple bucks. Also consider the reputation and size of the manufacture. If you get a baffle strike a couple years from now will they be around to repair the can?

Take a look SilencerShop.com. They have a wide selection, competitive prices and are great people to do business with. They will answer any questions you might have.

Process--

Click the buy button on the can of your choice.

SilencerShop deals with the transfer to your Class III dealer.

Once the can arrives at your dealer, you go in and fill out the paperwork (not a lot different than a 4473). Get your fingerprint cards done. Our crime scene guys do it for free here. Passport size photos at Walgreens for $10.

Mail paperwork, fingerprint cards and photos along with a $200 check to the ATF.

Wait until the tax stamp arrives at your dealer.

That's it. Nothing to it.

WR Moore · Dec 3, 2017

Gem-Tech has a suppressor that fits over the flash suppressor and locks to it. Relatively cheap and you keep your money in S&W (they bought Gen-Tech awhile back).

Almost regardless of what suppressor you buy, you can expect changes in point of impact. How much appears to be an individual thing. There was one make/model that required the firearm (or at least the barrel) to be sent in. The suppressor attached to the end of the barrel about in the middle of the suppressor housing, the barrel was machined to provide a concentric surface further back from the muzzle to ensure alignment and concentricity with the barrel bore. We aren't talking cheap here. Much easier to keep a record of sight settings with & without the can on.

Phil makes some very good points. Get a couple of suppressor weights, then attach that weight (and about a 8-10 inch barrel extension) on the end of your barrel. See if you can live with it. Most of the HSLD folks who use suppressors are using barrels around 11-12 inches long and your tax money is paying for top of the line products (light weight titanium shells & baffles).

RossDillon · Dec 3, 2017

Thanks...that's the kind of discussion I was hoping for.

serger · Dec 3, 2017

I've got a Gemtech Halo (the one Mr. Moore mentioned). The nice
thing about it is the ease of moving it from one rifle to another without
having to pull the bird cage. But having the change in impact is a
down side unless you just keep it on the rifle and live with the extra length.
I usually run it with the Colt 653. The short barrel makes it not as unwieldy.

RossDillon · Dec 3, 2017

I don't plan to move it, at least not "routinely"...I might someday buy a different weapon and move the can over.

serger · Dec 3, 2017

You're looking at at about a 23" long barrel setup with the Sport II.
That is a PITA a lot of the time. And being sure to index it right
when you pull it apart to clean it is also part of the learning curve.
Also if you get a .22lr conversion and shoot lots of them you have
the solder build up situation where you have to remove that from
the guts of the can. Usually don't see that from a semiauto but you
might win the lottery.

RossDillon · Dec 3, 2017

Most of my shooting is at the range...bought this for a plinker.

MY thought now though is my custom foam case may not be long enough to carry the weapon with the can installed. How hard are they to remove and replace? Simply screw on? Any issues like optics that may have to be resighted each time they are R&R'ed?

serger · Dec 3, 2017

Removal and replacement isn't hard. What happens is the threads wear.
This can cause slight misalignment of the can with the bore axis
which can change barrel harmonics and change POI. Also you might have
pulled the can apart to clean it. When you put it back together you have
to have the baffles in the same place or the harmonics will change.
Most of the time it's not a problem but it can be. There is a lot of
stuff that happens with the weight and suppression on your barrel.
These things are interesting that way.

One thing I forgot to add is with enough misalignment you can get
baffle strikes that tear up your can. Not good.

686-380 · Dec 3, 2017

I would recommend you check the laws in your state. I don't think they're legal in California.

There are a couple of other things to consider:
Subsonic ammo is readily available for .22. It is AMAZING how quiet it can be:

[ame]https://m.youtube.com/watch?v=UnBnF-7HkNE[/ame]

Ease of maintenance. How hard will it be to disassemble? My instructions indicate that I can shoot up to 2,000 rounds, before cleaning. They also recommend using grease on the baffles during reassembly.

I own a Dead Air Mask HD. It's a screw on. I really enjoy it. I use it on my .22s and a couple of home defense 5.7 weapons.

I hope this helps.

RossDillon · Dec 3, 2017

Not a problem in NV. Since I plan to move to Wyoming I need to research but I suspect they'll be OK there as well.

serger · Dec 3, 2017

FWIW Wy is class 3 friendly. I bought my first MG there. And
since I moved north, they passed constitutional carry for residents.
Wy allows the use of suppressors to hunt. They recently made it
legal to hunt deer/antelope with a .223 with a 60 grain or heavier
bullet:

see page 5 bottom left column for the cans and page 10 bottom
left column for legal firearms. (they finally got away from the
muzzle energy regulation they had for years)

https://wgfd.wyo.gov/Regulations/Regulation-PDFs/REGULATIONS_CH5_BROCHURE.pdf

Westie1 · Dec 3, 2017

OP, hopefully you're willing to wait on the stamp. Seen on a couple of other forums where it's taking a year or more to get approved.

serger · Dec 3, 2017

Last one I bought took 11 months. You forget about it until you get the call from your dealer.

ChattanoogaPhil · Dec 3, 2017

serger said:
Removal and replacement isn't hard. What happens is the threads wear.
This can cause slight misalignment of the can with the bore axis

One thing I forgot to add is with enough misalignment you can get
baffle strikes that tear up your can. Not good.

The threads can be new on the rifle and suppressor but still have a lot of slop allowing the can to droop if it becomes loose, possibly resulting in a baffle strike.

If the suppressor is tight up against the collar it will be aligned regardless of thread slop as long as everything else is in check. But... to avoid a suppressor coming loose (since most are only hand tight with direct thread) is to install a QD. The QD is torqued onto the barrel and the suppressor ratchets or otherwise locks in place onto the QD so it remains tight and aligned. That's one of the reasons I suggested QD earlier in the thread.

RossDillon · Dec 3, 2017

Good to know, thanks

686-380 · Dec 3, 2017

Yes, yes it will...

Westie1 said:
OP, hopefully you're willing to wait on the stamp. Seen on a couple of other forums where it's taking a year or more to get approved.

Back in February, I submitted a form 4 for an SBR I had done. I was told it would be a month or two more - IF it gets approved. I have an NFA trust though. That could be slowing things down too.

Kadonny · Dec 4, 2017

ChattanoogaPhil said:
Weight-- Remember that it will be hanging off the end of the muzzle. Lighter is better IMO (also more expensive).

Agree, they can get heavy, especially if shooting not with a rest.

ChattanoogaPhil said:
Attachment method-- Thread-on or QD. Go with QD. Most are designed to perform as a comp/brake when the suppressor is detached.

Agree. And with the new QD systems out there they are very stable and easy to put on/off. With a direct thread, each time you take it off or put it on you run the change of bugging up your barrel threads. Not to mention a lot of direct thread models tend to loosen when shooting.

ChattanoogaPhil said:
Don't get hung up on rated db reduction. They'll all perform well enough. Besides, you'll be suffering a supersonic crack anyway... it is what it is.

I disagree. If you get a can that is hearing safe (or close to it) it can still be very comfortable shooting it with minimal or no hearing protection, even with the subsonic crack. The crack is heard downrange anyway, far away from your ears. Subsonic crack is not anywhere near as loud as muzzle blast, so get the quietest supressor you can.

ChattanoogaPhil said:
Some guys are going with 30cal cans that are designed smaller and lighter than a typical 30cal can to use on both 5.56 and 30cal rifles. This is where the QD attachment method really shines to simply move the can around on different rifles.

---> Strongly consider it's a lifetime purchase. This isn't the time to get cheap and not buy the one you really want to save a couple bucks. Also consider the reputation and size of the manufacture. If you get a baffle strike a couple years from now will they be around to repair the can?

Take a look SilencerShop.com. They have a wide selection, competitive prices and are great people to do business with. They will answer any questions you might have.

Agree. Silencer Shop with their new Single Shot Trust makes things even easier, wtih little added cost. I just used this for my new can I'm waiting on, did the traditional trust route for my 2 prior cans.

Regarding the can itself, I went with AAC, well known quality maker that has a long history. Their new propietary 41 tooth QD system allows you easy on/off with good lock up because of the teeth and attachment system. I ordered the SR-5 for 5.56. Great decible reduction, good price and as I said an excellent attachment system. You can remove your standard Sport birdcage, install the AAC flash supressor that has the integrated teeth, and you are ready to thread on the supressor. It is that easy.

Good luck, they are a lot of fun, and yes, the wait stinks. I'm hoping the time frame is lessening (heard it was) finally after spiking with the passage of 41p. I sent in back in September, hoping to have it approved in the late spring.....hoping.

Suppressor for Sport II

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