M&P 22 Compact - compensator?

[Tenn2]

My M&P 22 compact came with the thread protector attached. The adapter and wrench are still in the box. I have other pistols that I are for suppressor use.

Just shop around for the one with a thread protector only. The muzzle brake will really not be much help in .22.

Russ

 

[ScottS]

If you don't want to wait for/rely on S&W customer service, EWK Arms sells the thread protector for $11.95. Great company, too.


Smith & Wesson M&P 22 Compact Barrel Thread Protector - $11.95 : EWK Arms

 

[taylorkh]

My Tandemkross compensator arrived a week or so back, my 3 extra magazines over the weekend. My M&P 22 compact FINALLY arrived today. I knew the O ring supplied by TK would not work with the M&P. It is designed for a bull barrel such as on the Ruger Mk pistols or the S&W Victory. I called TK support. It was rather obvious they had not tried installing their comp on the M&P Compact as they could offer no solution as to how to index it. Not to be slowed down by this, I had already figured some approaches...

My first thought was to use an AR crush washer. This fits OK except all 7 from my parts box, in including a couple of used ones, indexed the comp almost 180 degrees out. These washers take considerable torque to crush and I was concerned that I would twist the barrel out of the frame. On to plan B...

I cleaned the adapter male threads and comp threads, applied some primer as I was in a hurry, and some low strength Loctite. I tightened the adapter to the barrel (cold) and installed the comp and indexed it to my liking. Time for lunch.

After lunch I loaded my 5 magazines, went to my range and fired 100 rounds as fast as I could empty and reload the mags. This warmed up the barrel. Of course the adapter stared to loosen from the barrel and when I tightened it hot it went a little past the cold position. But that is why I used the low strength Loctite for this TEST. Another 150 rounds - no failures to function and back to the shop.

I pulled the adapter and comp, put the comp in the vice and indexed the adapter against it (the Loctite was still warm). I reassembled everything and did some thinking pending my next blasting expedition.

I would like the comp to be adjustable - not permanently locked to the adapter. I believe the answer is to drill and tap a hole in the bottom of the comp for a grub screw. A piece of brass between the screw and the adapter threads will prevent damage. I have challenged the fellow at TK to come up with an answer and promised to share whatever I come up with. We shall see.

Ken

p.s. TOM BECKWITH - you said you had a TK comp on your M&P. How did you index it?

 

[taylorkh]

This afternoon my neighbor came over with a collection of Dan Wesson parts which had been assembled into a semblance of a pistol (long story for another forum). We had spent a couple of days fixing it and the last thing he needed to test was a new slide stop. Of to the range we went with DW 1911, the M&P 22 and the rest of a box of Federal 550 round bulk pack ammo from Wally World.

The M&P fired the rest of the ammo with only one failure to feed. That was my fault. I was loading mags and discussing the slide stop issue at the same time and flipped the top round in one of the magazines backwards That of course did not feed but once I reversed it it went fine along with the rest of the mag. 550 rounds in a new pistol without cleaning. Very impressive

Back to the shop and time for a tear down, clean and lube. The pistol itself was not very dirty and probably could have done another 550 rounds. As to the compensator

I removed the barrel extension/adapter and comp and dropped them into a bottle of Hoppes #9 and let them sit for a few of hours. After pistol was cleaned and lubed, dinner etc. I pulled the comp from the bottle. What a mess. It was not just carbon and crud. I scraped CHUNKS of lead out of it with a screwdriver. The inside of the adapter was also full of lead. Fortunately a Q size drill bit fit just right and I was able to use that to remove the lead from the adapter. The comp...

Luckily I got the raw stainless finish. If worse comes to worse I will take it to my bead blaster and give it a mat finish along with cleaning. Actually I have one other trick up my sleeve. I place a postage stamp size piece of Scotch Brite in a brass cotter pin and install that in the collet hand piece of my Foredom rotary tool. This makes a great inside cleaner for revolver cylinders and similar things which get coated with lead and carbon. I think I will try that on the inside of the comp.

An otherwise great day which came to a disappointing end. A 15 minute clean of the pistol after every 500 rounds is great. A multi-hour (day?) effort to clean the comp... Perhaps I need to get the barrel cap and use the comp for a fishing sinker

Ken

 

[taylorkh]

As I can't find the barrel cap in stock anywhere I went back to the comp. I had soaked it in a bottle of Hoppes #9 over night. Nothing. I recall a local class 3 dealer telling me that he concocted something from vinegar to clean suppressor parts. A little research refreshed my memory. He was using peracetic acid (vinegar and hydrogen peroxide.)

I picked up a bottle of Wally World's best representation of the two chemicals and mixed some up. I washed the Hoppes off the comp with acetone and then brake cleaner then dunked it in the witches brew. I shook it a couple of times over the next half hour and took a break for lunch. After a little more than an hour of exposure I pulled out the comp and washed it in water, baking soda and dish washing detergent to neutralize things.

MOST OF THE C R U D WAS GONE!!! So I now have a means to clean the comp. I also read that lanolin based resizing lube applied ahead of time and during use will reduce the buildup of **** in the comp.

Ken

p.s. The forum seems to have censored the technical name for the **** in the comp.

 

[s&wm&p4me]

I have carolina Crusher compensators on both my 22c and my Taurus TX22,no problem with the sights, and they actually work!