Nice to know, I bought the exta piston for the diiferent thread mounts for 45. I did not know it could run 40 or 9. How is the sound reduction? How much do you lose?
pb
You loose about 3-4 dB and the FRP is a little higher, but for the money versus buying another can, it’s pretty damn good. 
jason, would we just order the evo9 piston for 9mm to use in the TiRant 45? or does that not work and require a unique piston for the TiRant model? i was under the impression that no piston was available yet, but i haven’t been keeping up. thanks.
Nick-
The Ti-RANT 45 has it’s own pistons, they are not on the web site right now. You would have to call and order them.
They are Ti-RANT 45 pistons threaded for .40 and 9mm hosts.
I too am looking to get a 5.56 can sometime this year, and I am also on the fence between an NT4 and an M42K.
I guess the one thing I have going for me is that I used the NT4 a lot on my M4 while in the Army. Knowing the can and it’s strengths and weaknesses, etc (and owning a MK18 clone) it is hard to go with anything else.
The awesome thing about the NT4 is that it is the “brick shit house” of 5.56 cans. You want a can with proven battle field reliability then this is your can. It will take whatever abuse you throw at it and keep on going. The bore is larger so as to avoid baffle strikes better, it has a noticeably more “deep” report to it (less A zone frequencies), and lets face it…it is just awesome looking, especially in the KAC Taupe color.
What sucks about the NT4 is first of all it is a solid $300-$500 more than the M42K and I just don’t think it is really worth the extra $$…sorry KAC. It weighs a good deal more (6 or 8 oz, can’t remember) than the M42K, and to be honest the attachment method is VERY dated compared to the AAC QD stuff.
Another area to consider is the muzzle devices for each of these cans. The brakes/flashhiders/brakeout muzzle devices AAC offers are very nice pieces and relatively inexpensive compared to the KAC muzzle devices (specifically the 3T), however the PWS NT4 mount seems to be filling a nice stopgap and I would be tickled if Battlecomp would make an NT4 mount (might happen, who knows).
Both are nice cans and the NT-4 is high on my list of other manufacturer’s cans that i would get.
Next to the M4-2000, it’s probably the strongest/toughest can available. And it does look bad ass.
Like you said though, it is 30-40% more expensive, louder, heavier, has less mount options.
I will say that you shouldn’t be disappointed in the NT-4 if you go that way. Good stuff like everything from KAC.
What muzzle device do you guys use or recommend for the m4-2000. Again, I need one for a 11.5 and one for probably a 16inch. Maybe a 14.5 if I can get that pinned vortex off and AAC adapter on.
I’m using the AAC Blackout 51T Muzzle Brake on my 11.5", and I’m planning on pinning an AAC Blackout 51T Flash Hider on my 14.5".
I say get the new 762-SDN-6. Supposed to work great on .556 SBR’s. I’m more into multi-purpose anymore. If you ever decide to do a .308 down the road, your covered. It’s a lot cheaper to go the multi-purpose route,
I mean I love my M4-2000 and all. But it wouldn’t work on my larger calibers, I had to buy a 30 cal. can too, :no:
The 762-SDN-6 is a good multi-cal choice… on a 5.56 gun, it’s about 3-4 dB louder than an M4-2000. It’s an inch longer and 2.5 ounces heavier. It’ll be released at SHOT. Same price as the M4-2000.
I have the Breakout on my 10.5" AR. It does what it is suposed to do. I have a Break on order for my 18" gun. The 7.62 SDN will also use these same mounts. I hope to be able to order an SDN this year to try it out…
Jk
I dont mind buying a 30 cal for a 30 cal gun, and then maybe running it on a 5.56 if the mounts and everything is in order. But I dont think buying a 30 cal can for a 5.56 is the way to go. Just my approach.
Anybody run the pure AAC Brake, its my understanding that the “Brake” , not Brakeout increases the life of the suppressor. Does the Brakeout give this added benefit. The Brakeout is just a Brake, no “OUT”. Anything better about the Brakeout than the Brake that I am missing. Other than 50 bucks more.
PB
I don’t have my Break to compare yet, but I have somewhere around 500 rounds through my m4-2000 with the Breakout on a 10.5" AR. I know that is not to much, but the blast baffle just looks dirty. The Breakout it self has a little over 1000 rounds on it and it is quite eroded. It handles recoil quite nice too.
Jk
So your point is the Brakeout is taking the Brunt of the load- correct? Thanks for the feedback.
I agree with your caliber feelings…
OK, sounds like a little confusion on the muzzle device options.
There is debate about how much “life” a muzzle break mount will add to your can, but what isn’t in doubt is how hard SBR 556 guns are on a can’s guts. So, that said, people that want to run suppressed most of the time, opt for some version of a brake. The surfaces in a brake can act as “pre-blast baffles” and catch a good bit of gas and unburnt powder before it hits your blast baffle.
So, from AAC your options are:
BLACKOUT™ Flash Hider - the most effective flash hider (eliminator) available. No “brake” or compensating built in. This will eliminate flash even on a 10" gun at night.
BLACKOUT™ Muzzle Brake - a double chamber muzzle brake that almost eliminates recoil. It has a good amount of flash on short barrels, as well as blast out the sides. because of this, it’s perceived as much louder to the shooter than the flash hider. It does have two “brake surfaces” that absorb some of the abuse before the gas/powder gets to the guts of your can.
BRAKEOUT™ Compensator - basically it combines the above two devices- a single chamber brake combined with a short flash-hider portion. It isn’t as good at reducing recoil as the full brake, and has more flash than the BLACKOUT hider, but it sits pretty much in between them in performance. It has a decent amount of side blast, and gives one “brake surface” that the gas/powder hits before t gets into the can.
That all said, you can run a flash hider with your can on a 10" gun and it’ll last a long long time. But some people like a little extra insurance which I understand.
Has anyone ever measured how much extra insurance a brake gives over a flash hider? I know a few folks have described muzzle brake + can combos to be a little quieter (subjective), but I’m curious if any data exists that compares brake + can and flash hider + can.
-B
No on the definite measurement of life… these cans will go 20,000 rounds+ with a flash hider mount, so the increase with a brake has not been measured. Only subjectively in short-term tests (3000-5000 rounds), the blast baffles show less erosion on SBRs with brakes.
And measured by a meter, the muzzle device makes absolutely no difference in sound.
Thanks for clarification; I sense a Blackout pinging in my future. 
-B
I think so. At least on an SBR. On barrels over 12" it probably really doesn’t matter. Jason would know better. Here is a pic of my Breakout now, with ~1100 rounds through it.
M4-2000 with ~ 400 to 500 rounds through it.
I really don’t notice the blast at all with the Breakout on my 10.5" AR. Some ammo has flash out the sides in low light. Here is a video of me shooting my SBR with the Breakout. It is bright out, but I am in the shade and you can’t see any flash with the Breakout. I am shooting XM193.
http://www.youtube.com/watch?v=gtySWBoolFI
I love this suppressor. Sounds great on an SBR. I can’t wait to hear it on my 18" AR…
Jk