KAC 14.5 Mod 2 Upper CHANGING Muzzle Device Advice

[HasuPK]

Hello all

Recently purchased the Mod 2 MLOK 14.5 KAC upper SR-15

Would like to change the three prong into something that does both functions, and is not solely a flash hider.

I was thinking of the following options, in order of preference;

1) Precision Armanent EFAB
2) PWS FSC556
3) Whatever else you think I should consider

As a side note, will any of these NEGATIVELY affect the performance of the upper?

Thanks

[RobertTheTexan]

I bought a Precision Armament AFAB for an 11.5 build I did. The gent that recommended the AFAB to me has both EFAB and AFAB, but had a hard time distinguishing the two when HE shot the AR's they were on and so he actually recommended he AFAB to me. I was impressed with the EFAB, that I bought another and replaced a BattleComp. Haven't used PWS, but I'm definitely sold on the Precision Armament brakes. I'd put it on your short list.


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[jpmuscle]

MAMS

/thread

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[Watrdawg]

I have the PWS on a BCM 14.5" and plan on changing it out. When shooting it and others are around you on the range they can definitely feel the concussion from it. Only reason I have not done it yet is that it is pinned and welded to the barrel. I'll have to send it off and have just not taken the time to do it so far.

[scooter22]

MAMS

/thread

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I concur

[VIP3R 237]

Are you planning on using a suppressor in the future? If so then I would suggest looking into the appropriate suppressor mount.

However of the two choices listed I would recommend the EFAB.

[Failure2Stop]

I really like the KAC M4QD MAMS.
https://www.knightarmco.com/portfolio/5-56-m4qd-mams/?cate_cm=military&term=556-muzzle&features=5-56-m4qd-mams

I work for Knight's, and I could put literally any of our super-duper muzzle devices on my guns, and my 14.5 SR-15 wears one of these (pinned and welded).
Here she is with an NT-4:
https://scontent.xx.fbcdn.net/v/t1.0-9/16996364_1232948916812482_4803460688801659859_n.jpg?oh=54f098fe647a918943c1d14c229b3913&oe=598707B8

It's not the least expensive brake/FH in the world, but it is highly effective, not as blasty as most others, mounts an NT4, and is a KAC product (which keeps your warranty in-tact with no justification needed as long as the installer doesn't screw anything up).

[Titan74]

Do Mod 2 E3 flash hiders have thread locker applied, such as Locktite or Rocksett? I need to change one too, and remember hearing that those have been sometimes difficult to remove. I don't have an KAC barrel extension wrench, and that is difficult to obtain here in my neck of the woods. What would be the second best way to go about removing it safely?

[GH41]

I wouldn't bastardize a KAC upper Do what Jack said and put a MAMS on it.

[jpmuscle]

God that NT4 is so baddddd

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[methical20]

@Failure2Stop

Did you choose the NT4 MAMS because you already had an NT4 or do you prefer it over the QD MAMS? What is your reasoning?

[firefighter37]

Yet another vote for MAMS, but don't listen to me, listen to Jack.

[Alpine2k3]

Jack, how does the NT4 MAMS compare to the Triple Tap?


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[Striker6]

I have the PWS on a BCM 14.5" and plan on changing it out. When shooting it and others are around you on the range they can definitely feel the concussion from it. Only reason I have not done it yet is that it is pinned and welded to the barrel. I'll have to send it off and have just not taken the time to do it so far.

I second this. I have the same setup on one of rifles and the PWS is rough for other shooters on the firing line. With that said it does do a good job of eliminating barrel rise and keeps the muzzle flat. I would go a different direction if I was to rebuild that upper today.

[Failure2Stop]

@Failure2Stop
Did you choose the NT4 MAMS because you already had an NT4 or do you prefer it over the QD MAMS? What is your reasoning?

Why I went with the M4QD MAMS:
1: I like the aesthetics
2: It was new and I wanted to have significant experience with it before discussing it with customers.
3: It costs $100 less than the standard 5.56 MAMS
4: I have a nostalgic soft spot for the NT4
5: I do not personally own a 5.56 QDC suppressor (as I have a nostalgic soft spot for the NT4), and only have so much disposable income to devote to suppressors.

Pic taken from google:
https://i.ytimg.com/vi/49S_QzU-wrk/maxresdefault.jpg


Jack, how does the NT4 MAMS compare to the Triple Tap?


Very favorably in the cost:benefit equation.
I really like that I can pin and weld the M4QD MAMS on a 14.5 and meet the >16" requirement (wink, wink).

[RobertTheTexan]

Hello all

Recently purchased the Mod 2 MLOK 14.5 KAC upper SR-15

Thanks


I have a couple of questions for you OP.
1. Is this muzzle device going to be pinned or will this upper be SBR'd?

2. Like VIP3R 237 asked - are you going to suppress this weapon? But based on the MD's you've listed I'd probably bet that you are not suppressing it. Or maybe I'm wrong.

3. Why isn't the MAMS on your short list?

If you're going to pin & weld wouldn't you want to go with a MAMS? Aesthetically and from the viewpoint of salable/value?




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[tom12.7]

I really like the NT-4, it is dated though. It's built like a tank and pretty much user proof for most with 3 digits in their IQ. I've put a lot of rounds through them with belt fed guns down them without killing them.
That said, I would really like to see a KAC solution to a similar muzzle device that mounts similar to the M110 FH onto older legacy platforms that use the shortened M110 versions of that can, 16" BR, MK11 carbine, EMC, etc.. Similar to what has been done for the NT-4.
KAC won't sell millions of them obviously, but I would be down for 10 or so for myself, probably 25 for others.

[Koshinn]

So how difficult is it to remove the muzzle device from a sr-15 mod2 mlok upper?

[tom12.7]

Easy with the KAC BE tool and a quality open ended wrench.

[tom12.7]

For the OP, sorry about my rant, but I would not exclude the MAMS as an option.

[Spin Drift]

Another vote for a MAMS on a Mod 2.

45299

[Jwknutson17]

I would say MAMS. If your budget doesn't allow, then the AFAB would be my second choice if not running a suppressor.

[Koshinn]

Easy with the KAC BE tool and a quality open ended wrench.

Any idea where I can get a KAC Barrel Extension Tool?

[tom12.7]

Any idea where I can get a KAC Barrel Extension Tool?
If you can't find one fast, PM me.

[elephantrider]

https://scontent.xx.fbcdn.net/v/t1.0-9/16996364_1232948916812482_4803460688801659859_n.jpg?oh=54f098fe647a918943c1d14c229b3913&oe=598707B8



How's the multigun optic? Which reticle?

[jpmuscle]

Any idea where I can get a KAC Barrel Extension Tool?
Pretty sure a standard geissle rod will work also. But not vice versa with the KAC one.

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[tom12.7]

I've seen a few that did work, but most would not. Use the KAC tool.

[Tactical Spork]

Mams. I have one pinned and welded on mine. You won't regret it. My friends shot my gun and get pissed at how soft it shoots

[jpmuscle]

I really like the KAC M4QD MAMS.
https://www.knightarmco.com/portfolio/5-56-m4qd-mams/?cate_cm=military&term=556-muzzle&features=5-56-m4qd-mams

I work for Knight's, and I could put literally any of our super-duper muzzle devices on my guns, and my 14.5 SR-15 wears one of these (pinned and welded).
Here she is with an NT-4:
https://scontent.xx.fbcdn.net/v/t1.0-9/16996364_1232948916812482_4803460688801659859_n.jpg?oh=54f098fe647a918943c1d14c229b3913&oe=598707B8

It's not the least expensive brake/FH in the world, but it is highly effective, not as blasty as most others, mounts an NT4, and is a KAC product (which keeps your warranty in-tact with no justification needed as long as the installer doesn't screw anything up).
Ya know, going back to this I wish there was an NT4 CQB in existence.

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[tom12.7]

Back in the day, they decided not to make the NT3 a commercial product. I wish they did, but that's what regular consumers are dealt with.

[Mr. Goodtimes]

I really like the KAC M4QD MAMS.
https://www.knightarmco.com/portfolio/5-56-m4qd-mams/?cate_cm=military&term=556-muzzle&features=5-56-m4qd-mams

I work for Knight's, and I could put literally any of our super-duper muzzle devices on my guns, and my 14.5 SR-15 wears one of these (pinned and welded).
Here she is with an NT-4:
https://scontent.xx.fbcdn.net/v/t1.0-9/16996364_1232948916812482_4803460688801659859_n.jpg?oh=54f098fe647a918943c1d14c229b3913&oe=598707B8

It's not the least expensive brake/FH in the world, but it is highly effective, not as blasty as most others, mounts an NT4, and is a KAC product (which keeps your warranty in-tact with no justification needed as long as the installer doesn't screw anything up).

That rifle is straight up black sex.


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[jpmuscle]

14.5 mod 2 is definitely my next buy.

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[jpmuscle]

Back in the day, they decided not to make the NT3 a commercial product. I wish they did, but that's what regular consumers are dealt with.
Where can I read about this? And that would have been glorious.

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[tom12.7]

The M4-QD and the NT4 have been around a very long time, the design is 20+years old now. I'm not sure how far back the NT3 dates to, but I bet it's early on though. Trying to dig back that far on the internet isn't going to be easy.

[bermise]

I really like the KAC M4QD MAMS.
https://www.knightarmco.com/portfolio/5-56-m4qd-mams/?cate_cm=military&term=556-muzzle&features=5-56-m4qd-mams

I work for Knight's, and I could put literally any of our super-duper muzzle devices on my guns, and my 14.5 SR-15 wears one of these (pinned and welded).
Here she is with an NT-4:
https://scontent.xx.fbcdn.net/v/t1.0-9/16996364_1232948916812482_4803460688801659859_n.jpg?oh=54f098fe647a918943c1d14c229b3913&oe=598707B8

It's not the least expensive brake/FH in the world, but it is highly effective, not as blasty as most others, mounts an NT4, and is a KAC product (which keeps your warranty in-tact with no justification needed as long as the installer doesn't screw anything up).

Looks like deep South TX in the back ground! My favorite place to hunt

[Failure2Stop]

Looks like deep South TX in the back ground! My favorite place to hunt

Good eye!

[khc3]

Which scope mount is that?

[Failure2Stop]

Which scope mount is that?

KAC raised and extended 30mm mount, PN 30520.
It's kind of unheard of, as it's been lost on the KAC website storefront for a few years.

[Mr. Goodtimes]

What was the NT3?


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[Duffy]

You should give our 6315 a look :smile:

It's based on A2 dimensions, with Forward Controls designed asymmetrical ports (smaller and shorter ports at 3 and 9 o'clock) to give it flash suppression performance of the A2, but with 20 to 25% better muzzle rise compensation performance, without the noise and concussion of a typical comp or brake.

The shape of the ports pay homage to the Stoner 63 LMG (hence the "63" in 6315's namesake)

http://i75.photobucket.com/albums/i314/Duffypoo/6315a2comp4_zpsetrjx3po.jpg (http://s75.photobucket.com/user/Duffypoo/media/6315a2comp4_zpsetrjx3po.jpg.html)

[Failure2Stop]

What was the NT3?

A 3-baffle NT4.

[Mr. Goodtimes]

A 3-baffle NT4.

I sea. I'm assuming more compact than a regular NT4? Like an NT4 CQB?


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[LookAtYourself]

Precision Armament EFAB is the best at doing both. While it is a comp, its ability to suppress muzzle flash is insane.

This is not my video.

https://www.youtube.com/watch?v=1EYBW-AMu8s

[tom12.7]

A 10.5" 5.56 AR using .223 Tula 55gr isn't the more or most accurate way to represent the carbine type 5.56 AR platform for a comparison like this.

[jpmuscle]

A 3-baffle NT4.Build it. Build it again!!!

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[tom12.7]

I'd buy it, but with the newer generation of KAC MD's and cans, I'm not sure how large that potential market could be? It still has to make business sense to make it worthwhile to do it.