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MovinMan
06-27-09, 21:58
I take it out tomorrow to some range testing out in the desert.

Noveske 12.5 Crusader Barrel
Daniel Defense 10.0 Lite Rail
Larue/Magpul UDR kit
Troy BUIS
LMT BCG
KAC Triple Tap brake.

One of the things I am most curious about is a direct comparison both with and without the KAC brake. I will be testing it against a Smith Vortex (basically no brake) and a Primary Weapons FSC556 brake.

We'll see how effective it is for $400+ clams. Im doubting its gonna be a noticeable difference but it sure is trick.
http://gallery.me.com/spaceflipper/100647/DSC_0039/web.jpg?ver=12461545890001
http://gallery.me.com/spaceflipper/100647/DSC_0037/web.jpg?ver=12461545870001
http://gallery.me.com/spaceflipper/100647/DSC_0042/web.jpg?ver=12461545820001
http://gallery.me.com/spaceflipper/100647/DSC_0035/web.jpg?ver=12461545850001

Mark71
06-27-09, 23:15
VERY nice build! I am looking forward to your range report as I am also curious to know how the PWS FSC556 and KAC brake compare to each other.

Hellfire
06-27-09, 23:33
Nice build, but the brake looks a little James Bond/Goldfinger yea?

MovinMan
06-27-09, 23:41
It wont after tomorrow.

SeriousStudent
06-28-09, 00:45
Dayum! :eek:

Serious, serious lust in my heart for that setup - a Noveske 12.5 with a KAC brake.

It will be very interesting to see your report.

SWATcop556
06-28-09, 01:08
Nice SBR. While I like the idea of the KAC brake I just can't justify an almost $450 price tag. Unless it can asure one-shot stopping power or eternal youth, I just can spend that much on a brake.

It sure is pretty though.............:cool:

Rated21R
06-28-09, 01:41
What color is are those accessories? Very nice indeed.

Broadway
06-28-09, 02:08
That's some serious coin there, but a great end result. I too am waiting to here how the TT compares to the others.

CoryCop25
06-28-09, 02:13
Very nice weapon! Wish I could afford it! Is your magazine release in backwards? It looks smooth not serrated.

Cameron
06-28-09, 02:20
Is your magazine release in backwards? It looks smooth not serrated.

I think that is a bullet button, for use on a CA compliant rifle.

CoryCop25
06-28-09, 02:23
AAAH! Okay. I was unaware that serrations on mag releases violated the California constitution. :confused:

Dunderway
06-28-09, 02:36
I think that is a bullet button, for use on a CA compliant rifle.

I didn't think that you could have an SBR in CA regardless.

bkb0000
06-28-09, 02:48
doesn't look like any bullet button i've seen- they usually look just like a regular mag release, but with a hole where the mag catch should be.

i think this ones just yunikew.

MovinMan
06-28-09, 04:31
Good spot.

I dont know how or why but that mag release button is smooth on both sides. It was a CMMG lower parts kit. Never seen one like that but I didnt want to buy another LPK just to get a new button.

I guess they just forgot to machine the one side.

brianc142
06-28-09, 07:30
Nice build brother. I have an almost identical setup that is my favorite upper. I can't say enough about the Noveske 12.5.

yallknowho
06-28-09, 13:12
VERY nice build! I am looking forward to your range report as I am also curious to know how the PWS FSC556 and KAC brake compare to each other.

me too.

MovinMan
06-28-09, 13:42
OK, so I took her out to the desert and blasted off around 500 rounds.

I wanted to start with a blank slate so I shot about 100 rounds through a plain flash hider.....my YHM.

First let me start by saying with no modesty whatsoever on my part, I build a hell of a rifle.

http://www.ar15.com/images/smilies/smiley_abused.gif

She runs like a top and is just so light and flickable.

The YHM obviously gave me what I was used to in a muzzle device. It was bright and sunny so no muzzle flash anyways. The recoil impulse was typical and predictable. Keeping a 5.56 on target during rapid fire isnt that hard anyways, so I really didnt expect much from the KAC brake.
http://gallery.me.com/spaceflipper/101137/DSC_0073/web.jpg?ver=12462153620001


Well, I was wrong.....very wrong. Was I $437.00 wrong? Thats a personal decision.

The recoild impulse was brisker....if thats a word. I didnt feel as much of the buffer spring in action. The gun felt like it got back into battery quicker. Muzzle flip was reduced greatly. I could rapid fire as fast as I could get on the trigger and shots on an 8 inch paper plate from 35-40 yards were a cinch during those mag dumps. Theres no way I would have kept my clusters as tight with a plain flash hider.

I was only able to catch one brass shot and no muzzle flash.
http://gallery.me.com/spaceflipper/101137/DSC_0082/web.jpg?ver=12462153540001

I caught the bolt back on this one but no brass.
http://gallery.me.com/spaceflipper/101137/DSC_0065/web.jpg?ver=12462153570001
http://gallery.me.com/spaceflipper/101137/DSC_0077/web.jpg?ver=12462153790001



The good news is that if you want the same recoil control......you dont have to spend $400 to get it.

The Primary Weapons System brake was every bit as effective for taming muzzle flip and recoil for less than 1/4 the money.
http://gallery.me.com/spaceflipper/101137/DSC_0076/web.jpg?ver=12462153420001


The only way I could see spending the dough on the KAC brake is if you are a KAC junkie, you were gonna get the KAC suppressor that goes with it or you have more money than brains.......I guess Im the later.

I dont regret it at all......its a trick little piece and I really like it. Just dont feel like you're missing anything if you cant pony up the ching a ling for one.


And yes, it does start to darken but this is after around 500 rounds. I think 100 rounds with the can on would blacken it completely.
http://gallery.me.com/spaceflipper/101137/DSC_0083.jpg?derivative=medium&source=web.jpg&type=medium&ver=12462153840001


Oh, before the safety nazi's come out of the woodwork, all photos were done with a tripod.....no one was in front of my muzzle. The only thing in danger was my Nikon.

Fireglock
06-28-09, 14:15
Thanks for the report. And that is a nice looking rig! :)

rychencop
06-28-09, 14:56
thanks for the report. you do build a nice rifle. congrats!

hossb7
06-28-09, 15:31
awesome rifle, awesome pics

SWATcop556
06-28-09, 19:38
Oh, before the safety nazi's come out of the woodwork, all photos were done with a tripod.....no one was in front of my muzzle. The only thing in danger was my Nikon.

No safety Nazi's here.......we just thought you were training at Tactical Response!! :p

Very nice review. I have been toying with the idea of the PWS on my 10.5 LMT but couldn't decide. I felt it might be a little brutal on my shooting partners and I wasn't sure if it would give me a big enough advantage over the standard A2 birdcage on there now.

Robb Jensen
06-28-09, 19:53
Nice review. The one thing I would add having been in close proximity of 11.5" and 16" rifles being fired with KAC Triple Tap Comps and PWS FSC556s is that the PWS is A LOT louder. Also the FSC556 like most comps throws up more more stuff off of the ground when firing it prone.

MovinMan
06-28-09, 22:03
From a performance perspective, the PWS works awesome......very little recoil.

It could be a little punishing on shooting partners, it does have a pretty harsh concussive boom compared to the KAC.

Jer
07-25-09, 02:40
Those are some GREAT pictures man. Good job!

I just mounted my FSC556 w/YHM threads on my LMT 12" piston MRP upper and am just waiting a form 1 and form 4 to be able to actually use it. I'm doing some more research even though I already have it and that's how I came across this thread. Good to find another review stating that I probably made a decent decision.

Falar
08-04-09, 23:22
Nice review. The one thing I would add having been in close proximity of 11.5" and 16" rifles being fired with KAC Triple Tap Comps and PWS FSC556s is that the PWS is A LOT louder. Also the FSC556 like most comps throws up more more stuff off of the ground when firing it prone.

So basically dropping the extra coin on the KAC gets you a muzzle brake without the typical negatives inherent to muzzle brakes. Interesting, I'm impressed they pulled it off.

decodeddiesel
08-05-09, 14:16
Looks like wicked fun!

Awesome pics, awesome SBR!