MP22 Compact thread adapters

[The Galician]

Packing my range bag now with my Sparrow and I can't get the factory thread protector off nor was there a wrench in the box
My plan was to do a SR22/M&P .22 Compact suppressed shoot-off today but I guess the suppressed part will have to wait. This will be my first .22 S&W in years and can't wait to shoot it.

Greetings,

I was a grunt in the Army so there is nothing a BFH and vise grips can't fix. Of course the thread protector is not very pretty anymore, but I am inpatient and the thread protector was tight as hell.

I actually did a video review with my Brother for another forum testing ammo for a Ruger Mark III Talo. You can see it here:

Dangerous Brothers: Tradecraft... the Silencer Ammo Test - YouTube

1. CCI Quiet 22LR: 710 FPS with a 40 gr bullet
2. CCI Standard Velocity 22LR: 1070 FPS with a 40 gr bullet
3. Aguila 22LR SSS Sniper Subsonic: 950 FPS with a 60 gr bullet
4. Aguila 22LR Super Colibri: 500 FPS with a 20 gr bullet
5. Winchester 22LR Subsonic: 1065 FPS with a 40 gr bullet
6. Remington 22LR Thunderbolt: 1255 FPS with a 40 gr bullet
7. Gemtech 22LR Silencer Subsonic: 1020 FPS with a 42 gr bullet

I used this same ammo to test out the Compact and EWK adapter yesterday. Very, very impressed. No video

Straight out of the box, no cleaning, 500+ rounds. Some notes:

A. CCI Quiet almost fully cycled the pistol. The slide did not go all the way back causing the shell to get stuck in the slide. No big deal. Didn't expect any extraction. Maybe with a cleaning and lube it would fully cycle.

B. Aguila Super Colibri was lethally quiet, powerful and did not cycle the gun. Definitely tradecraft ammo.

C. Aguia SSS worked perfect. 60gr of whoop ***

D. All the rest performed flawless. No FTE, FTF or stove pipes

S/
TG

 

[strobro32]

Greetings,

I hold no allegiance to either dealer. Actually still waiting on the SRI one to get here. However, after 500+ rounds through the EWK... sorry, but no fouling to the degree you experienced. Maybe in another "few hundred" rounds.

S/
TG

Was all the testing done with the EWK adapter while suppressed? If yes, which host and which suppressor?

 

[viriceman]

Greetings,

I was a grunt in the Army so there is nothing a BFH and vise grips can't fix. Of course the thread protector is not very pretty anymore, but I am inpatient and the thread protector was tight as hell.

Vise grips worked like a charm

 

[The Galician]

Was all the testing done with the EWK adapter while suppressed? If yes, which host and which suppressor?

Greetings,

Yes, with the EWK adapter. That was the point. The set up was, M&P22C, EWK Adapter, and Tactical Innovations Stratus Suppressor.

I am a steel person. When it comes to swords, knives, and like arms, I have a solid grasp of steel.

If you want an adapter that is good enough... well I'd say EWK fits the profile. You get a thread protector and same day shipping because they are in stock. It is already blued and I like the Allen wrench aspect for removal... a lot.

I can't speak on the SRI model... YET. I was one of the first to order it and have yet to receive it. I sent my money order off on 2 Sep 14. Still don't have a ship date. But Shawn has been in contact with me and fully explained the delay. So for $28 and to test this pistol I got the EWK also.

If the EWK was the only one I bought... it would have been good enough for my needs. I don't run thousands of rounds through my suppressor a year. If you want a better metal, you will be waiting a bit.

The conclusion from my personal hands on experience is that you can get by just fine with an EWK. YMMV.

S/
TG

 

[cbunix23]

GemTech is also working on an adapter for the M&P 22 Compact. I don't have an ETA on availability.

 

[strobro32]

Twin Tech is making them now. I have no experience with this company.

M-P-Comp-22

 

[BigWaylon]

Twin Tech is making them now. I have no experience with this company.

M-P-Comp-22

I think I like that one best so far, when looking at the combination of price and design. I have a spare TP is could use, but they don't have the blued adapters available, yet.

Plus...it's just hard to buy something from a company that sells "solvent trap adapters", no matter how legal they may be.

 

[ScottS]

I have no attachment to the company in any way, but I can't say enough about EWK Arms, and their threaded adapter for the Compact.

Their customer service is really stellar, they shipped immediately, the adapter is only $23, which includes a thread protector, and they only charged $3 for shipping (no gouging there). I think there are 5 lessons in that sentence alone other companies could learn.

The adapter itself is beautifully machined and finished, and installs conveniently with a hex wrench at the front.

Lots of flash there, but I wanted to show the hex.

This is a terrific option for those who want a threaded adapter.

 

[BigWaylon]

Looks nice. But, that's the $22 version, right? Not the $23 version made for the SiCo rimfire cans. It's missing the o-ring engagement section.

It does appear short enough you could use it with the SiCo cans without worrying about damage to the o-ring or alignment issues, just not the added benefit of sealing off the threads from build-up.

 

[ScottS]

Looks nice. But, that's the $22 version, right? Not the $23 version made for the SiCo rimfire cans. It's missing the o-ring engagement section.

It does appear short enough you could use it with the SiCo cans without worrying about damage to the o-ring or alignment issues, just not the added benefit of sealing off the threads from build-up.

That's correct. It's the $22 version. Good eye.

I ordered the SiCo version by mistake, and sent Eric a note asking to switch versions before he shipped. I got an immediate note back telling me he'd switch versions for me. I told him to just keep it at the $23 price (I call it the "stupid tax").

 

[strobro32]

SS,

Please post when you know how many rounds will prevent the allen wrench from insertion. Let us know the round count, which brand/type of ammo and suppressor used. This info could help others decide which adapter to buy.

Thank you.

 

[ScottS]

SS,

Please post when you know how many rounds will prevent the allen wrench from insertion. Let us know the round count, which brand/type of ammo and suppressor used. This info could help others decide which adapter to buy.

Thank you.

You seem to think me more...anal than I am. I don't log my guns by round count/brand/which can. I shoot them. A lot.

I can tell you I've already had 100 rounds of CCI Subsonic through the gun, all through my XCaliber Genesis can, since I was shooting in my basement. There is little to no fouling. Personally, it looks to me like there's quite a bit of "room" there, and no real reason to assume the adapter will foul to the point it refuses a hex wrench. I think that "potential problem" is largely the invention of people who have a vested interest in other adapters.

Although this might be an excuse to dump another hundred rounds in the basement tonight. Shhhh...don't tell the wife.

 

[strobro32]

I'm not a scientist either but rimfire firearms spit lead like crazy. This is what the lead build up from 1000 rounds looks like in a SWR Spectre.

The broached allen wrench opening of the EWK adapter has a .25 inch opening. I'm just wondering how long it will take for .224-.228 bullets build up enough lead to cause the wrench not to fit or worse, a baffle strike.

 

[ScottS]

I understand what you're saying. I have literally thousands of rounds through my rimfire cans. My point is, so far, only SRI, who has a vested interest in people buying their not-yet-shipping adapter, has brought up this argument. Your line:

The broached allen wrench opening of the EWK adapter has a .25 inch opening. I'm just wondering how long it will take for .224-.228 bullets build up enough lead to cause the wrench not to fit or worse, a baffle strike.

is a direct quote from SRI's comment on NFATalk.

You can see the size of the opening in my last pic. I can't believe that will "clog" too soon. I don't get anywhere that amount of leading inside my other rimfire thread adapters. Most of the lead is deposited on or after the blast baffle. You can actually see that in your picture.

As I said, I have no connection in any way to EWK Arms. No "friends" there. I have no agenda other than to let people know about a useful and inexpensive product.

 

[strobro32]

SS, I was just asking you to share your experience with the EWK adapter so we will know what happens. Nothing will be as helpful to us as actual experience.

BTW, what you can not see in my picture is the mount is so full of lead that I had to leave it in The Dip for a day to remove the blast chamber.

I checked Matt's measurements and agree with his predictions.
My recommendation for adapters is to get stainless steel (from whichever Co.) and use The Dip. If not, get a dental pick.

 

[Ballistictip]

Very good info, thanks all.

 

[cmichael]

Twin Tech is making them now. I have no experience with this company.

M-P-Comp-22

I order Mine yesterday, Hope they ship it out Monday, I can't wait any longer for Silencerco to make one. It is good they made out of 416 SS , I can dip it without a problem.

 

[ewk_stuff]

Hi Guys! Eric here from EWK Arms-posting to clear up some of the "issues" strobo32 is raising about the 1/4" internal hex I use on the adapters.

I think the biggest thing would be actual field experience-while the M&P 22 Compact adapter is one I just came out with, I've been making the adapters for the 422 series with the 1/4" internal hex for years-and I can't recall anyone contacting me to let me know about it fouling/leading up. I would imagine if it was an issue I would have heard about it.

Only seen the issue raised on forums where people seem to think it is a problem.

In my opinion, the 1/4" internal hex is a better design for the M&P 22 for a couple reasons-
1. The adapter is a tiny bit stronger. If you mill flats on the .500" diameter portion of the adapter, you'll likely go with 7/16" flats for the wrench. With the .375"+ major diameter of the internal threads in the adapter, you'll only have about .031" wall thickness at the thinnest portion where the wrench flats are.
2. No worries about a wrench slipping on the flats.
3. With the outside flats or the outside hex shoulder, scratches you put on it will be more visible-they'll be hidden with the internal hex.

In regards to the hex leading up and causing baffle strikes-while again, I have not had or heard of anyone having that issue, wouldn't you think an adapter that had an internal opening that is a tighter fit to the bullet be LESS likely to cause baffle strikes? The bigger the opening in the adapter, the more the bullet is going to wander...

In my opinion any adapter that is well made will work fine-this is all minor theory between internal/external hex/flats-while I'd of course love for you to buy my adapter, in the end this is the USA-let the informed customer be the judge.

 

[WilliamG]

Hi Eric,

Thank you for your response! I'm interested in picking up one of your thread adapters for my (hopefully) soon-to-purchase .22 Compact. I have a question for you:

I keep reading about this O-Ring engagement stuff. I have a Gemtech M&P .22 (full size) thread adapter on the way, which has this O-Ring engagement - to be used on my Specter II.

So:

1.) What the heck is O-Ring engagement?
2.) Does your EWK M&P .22 Compact thread adapter have this O-Ring engagement?

Thanks!

 

[ScottS]

I'm not Eric, but I can answer these two.

1. Sparrow/Specter II use an o-ring inside the rear of the suppressor to help keep the "****" from blowing back onto the threads of the adapter. Look at the picture in the first post of this thread. See how the adapter on the left has a bare area that extends beyond the threads? That's where the o-ring is engaged to create the seal.

2. Yes, EWK does offer a Sparrow/Specter adapter for the M&P22 Compact. I know because I ordered it in error and had to correct my order.