what not to use on your 7.5 pistol

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[ARCHIVED THREAD] - what not to use on your 7.5 pistol

Posted: 1/9/2016 10:25:31 PM EDT

well I thought it would be cool to try the AAC 51t brakeout 2.0. well i was wrong the concussion is horible on a 7.5 after a few mags of shooting i felt like a truck ran me over let alone the flash was hard to see the target.

think i am going to go back to a flash hider

anyone else have experience with somethings you shouldnt have used?

Posted: 1/9/2016 10:32:31 PM EDT

[#1]

Brakes and short barrels don't usually mix well.

Posted: 1/9/2016 10:59:35 PM EDT

[#2]

Give the mini-Y-comp a try.

Posted: 1/9/2016 11:04:30 PM EDT

[#3]

I got to function test my 7.5 inch today, currently using cheap kak flash can and I must say that the fireball is impressive even in broad daylight.

Posted: 1/9/2016 11:07:58 PM EDT

[#4]

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Quoted:
Brakes and short barrels don't usually mix well.

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How short?

My 10.5" 5.56 has a brake and it works great. When it has the can mounted, it is a sacrificial baffle. It doesn't have any negatives without the can. It isn't as loud as my 16.5" with a SJC Titan brake.

Otherwise, a linear comp is the way to go.

Posted: 1/9/2016 11:20:33 PM EDT

[#5]

I actually like the KX3 best for short barrels.

Posted: 1/9/2016 11:26:12 PM EDT

[#6]

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Quoted:
I actually like the KX3 best for short barrels.

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yup

Posted: 1/10/2016 1:19:28 AM EDT

[#7]

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Quoted:

yup

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Quoted:

Quoted:
I actually like the KX3 best for short barrels.

yup

Made a HUGE difference going from a Saker brake to the KX3 on my 7.5" .556. I don't plan on ever shooting it again without the KX3 or else a Saker556 can.

Posted: 1/10/2016 4:06:36 AM EDT

[#8]

Levang is cheap and works... I've also used a Kineti-Tech brake/shield on 300blk/6.8 and it works good. Haven't tried one with 223/556.

Posted: 1/10/2016 3:50:22 PM EDT

[#9]

had a surefire 3p i put on, havent tried it yet but this is my brakeout 2

Posted: 1/10/2016 4:46:07 PM EDT

[#10]

223/556 doesn't have the most subtle flash from a 7.5". It's inherent with the small bore and slower burning powders used. Here's a comparison someone did on Levang and Troy.
Muzzle flash

I thought of hand loading faster powders and heavier bullets to reduce flash, but from my research cycling the action becomes an issue.... so I ended up with a 10.5" and that seems to burn more powder before it leaves the barrel.

Posted: 1/10/2016 6:09:11 PM EDT

[#11]

I have a spare 8.5" budget upper and was planning on running this (grabbed it for 15 bucks). I didn't want to add extra length like a flash can would. Otherwise I'd buy another 10.5" barrel.

The ports are much smaller than the standard a2 bird cage. I'm hoping it will be a good compromise between flash/concussion/recoil. It's not a brake like other devices the front is open like the A2. The holes are actually pretty tiny. Plus its melonited.

I'm hoping the side concussion won't be too bad. I also purchased a BRT comp for my 10.5" Upper. Main reason I didn't order 2 is because of the cost.

Posted: 1/10/2016 7:15:06 PM EDT

[#12]

Quote History

Quoted:

Made a HUGE difference going from a Saker brake to the KX3 on my 7.5" .556. I don't plan on ever shooting it again without the KX3 or else a Saker556 can.

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Quoted:

Quoted:
I actually like the KX3 best for short barrels.

yup

Made a HUGE difference going from a Saker brake to the KX3 on my 7.5" .556. I don't plan on ever shooting it again without the KX3 or else a Saker556 can.

Agreed on the KX3
Pic of the muzzle blast.

Posted: 1/10/2016 10:18:58 PM EDT

[#13]

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Quoted:
Levang is cheap and works... I've also used a Kineti-Tech brake/shield on 300blk/6.8 and it works good. Haven't tried one with 223/556.

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DPMS Lavang is a good solution to 5.56 concussion. I had one on my 7.5"
300 blk is an even better solution

Posted: 1/11/2016 5:56:52 AM EDT

[#14]

I have the Kineti-Tech Brake/shield on a 7.5" /223 and it works great. Just put it together this weekend and only got to put 10 rounds through it, but I'm impressed with it's function. Price is nice as well about 50.00 bucs.

Posted: 1/11/2016 6:42:10 AM EDT

[#15]

Kineti-Tech

Posted: 1/11/2016 10:58:18 AM EDT

[#16]

PWS

20140330_180545 by Slick_Rick77, on Flickr

Posted: 1/11/2016 4:14:21 PM EDT

[#17]

Quote History

Quoted:

Made a HUGE difference going from a Saker brake to the KX3 on my 7.5" .556. I don't plan on ever shooting it again without the KX3 or else a Saker556 can.

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Quoted:

Quoted:
I actually like the KX3 best for short barrels.

yup

Made a HUGE difference going from a Saker brake to the KX3 on my 7.5" .556. I don't plan on ever shooting it again without the KX3 or else a Saker556 can.

I have a Saker brake on my 7" 7.62x39 I shot it ONCE without the can no earpro, It was ridiculously loud and concussive

Posted: 1/12/2016 6:37:43 PM EDT

[#18]

I have considered using my JP Tank Brake on the 7.5. It might make me less popular at indoor ranges, however.

Posted: 1/14/2016 10:05:44 AM EDT

[#19]

I'm building a 10.5" barreled AR308. It will start out with a brake. I'll have to get some action pics up when I get it together. Then we'll see how long the brake stays.

Posted: 1/14/2016 10:15:58 AM EDT

[#20]

KX3 or similar is the way to go.
My 7.5" with KX3 feels like a 20" with an A2 to the shooter, as far as concussion.

Posted: 1/14/2016 10:52:09 AM EDT

[#21]

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Quoted:

I actually like the KX3 best for short barrels.

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Yep

Posted: 2/2/2016 4:47:37 PM EDT

[#22]

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Quoted:
PWS
<a href="https://flic.kr/p/nnugGe" target="_blank">https://farm8.staticflickr.com/7097/14026654473_94dfacef48_b.jpg</a>20140330_180545 by Slick_Rick77, on Flickr

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This.
PWS CQB is expensive and kind of heavy, but makes a huge difference in noise and the fireball is just gone.
I don't like the extra length, but it's so impressive I'm leaving it on.

Posted: 2/2/2016 6:45:45 PM EDT

[#23]

There is really no point to a brake on an AR anyway. Get a vortex type flash hider. Your welcome.

Posted: 2/3/2016 9:55:11 AM EDT

[#24]

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Quoted:
There is really no point to a brake on an AR anyway. Get a vortex type flash hider. Your welcome.

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I have a Vortex on my 7.5"...works perfectly, almost no flash now. The only minor grip is they weird "tuning fork" sound it makes after each shot...

Posted: 2/3/2016 10:09:14 AM EDT

[#25]

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Quoted:
There is really no point to a brake on an AR anyway. Get a vortex type flash hider. Your welcome.

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The vortex is excellent at flash hiding, but does nothing for the blast to the shooter.
I used to have them on everything but then replaced some of them with linear comps on my short guns.

Posted: 2/5/2016 12:46:29 PM EDT

[#26]

I tried several and was not pleased with concussion suppression except for the krink style but it looked like a tumor on the nose of a runway model. I found someone on Armslist willing to trade me my 7.5 for his 10.5 along with handguards and brakes and I was never happier.

Posted: 2/10/2016 11:49:26 PM EDT

[#27]

I have a Black River Tactical Covert Comp on my 7.5 pistol. Comparing it to a standard A2 on my 10.5 it is downright pleasant to shoot. The 7.5 has significantly less concussion with this brake compared to the 10.5. I can't speak much to the flash suppression, but I haven't seen any fireballs with my reloads in the afternoon.

Posted: 2/11/2016 12:57:42 PM EDT

[#28]

The Phantoms are just as effective,
as well as the A2's.

John

Quote History

Quoted:

The vortex is excellent at flash hiding, but does nothing for the blast to the shooter.
I used to have them on everything but then replaced some of them with linear comps on my short guns.

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Quote History

Quoted:

Quoted:
There is really no point to a brake on an AR anyway. Get a vortex type flash hider. Your welcome.

The vortex is excellent at flash hiding, but does nothing for the blast to the shooter.
I used to have them on everything but then replaced some of them with linear comps on my short guns.

Posted: 2/15/2016 8:41:46 PM EDT

[#29]

I'm a big fan of the PWS and the KX3 muzzle devices. I've wanted a flaming pig ever since my buddy got his on a rainier upper!

Posted: 2/16/2016 3:06:28 PM EDT

[#30]

Noveske KX5

Posted: 2/18/2016 12:22:29 PM EDT

[#31]

PIG Brake works awesome and is as loud as a 16" to anyone beside or behind you. It makes a 7.5 about an 1" shorter than a 10.5" so keep that in mind.

Troy Claymore works well and keeps your 7.5 a little shorter

Posted: 2/18/2016 2:54:05 PM EDT

[#32]

Quote History

Quoted:
PIG Brake works awesome and is as loud as a 16" to anyone beside or behind you. It makes a 7.5 about an 1" shorter than a 10.5" so keep that in mind.

Troy Claymore works well and keeps your 7.5 a little shorter

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I have one of the KAK's flash cans and they are great for the money. It is basically a PIG without the inflated price. I would go with the Claymore if had it to do over just for the look. I have changed my way of thinking on pistol/SBR barrels since building a few. My 7.5 with the flash can is less than an inch shorter than a 10.5' with most muzzle devices.

I would rather have the extra length be taken up by usable barrel length for velocity and possible accuracy reasons.

Posted: 2/18/2016 3:12:46 PM EDT

[#33]

Quote History

Quoted:
I have one of the KAK's flash cans and they are great for the money. It is basically a PIG without the inflated price.

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Not exactly...

The KX3 is an updated Krink brake, while the flash can is just an aluminum cone.

Posted: 2/19/2016 11:10:24 PM EDT

[#34]

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Quoted:

Not exactly...

The KX3 is an updated Krink brake, while the flash can is just an aluminum cone.
http://www.10-8forums.com/ubbthreads/postimages/10475-kx3_b.jpg

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Quoted:

Quoted:
I have one of the KAK's flash cans and they are great for the money. It is basically a PIG without the inflated price.

Not exactly...

The KX3 is an updated Krink brake, while the flash can is just an aluminum cone.
http://www.10-8forums.com/ubbthreads/postimages/10475-kx3_b.jpg

I have a few KAKs. Literally no fireballs.
Small cone of flash about 3" long

Posted: 2/21/2016 11:09:47 AM EDT

[#35]

Quote History

Quoted:
I have a Black River Tactical Covert Comp on my 7.5 pistol. Comparing it to a standard A2 on my 10.5 it is downright pleasant to shoot. The 7.5 has significantly less concussion with this brake compared to the 10.5. I can't speak much to the flash suppression, but I haven't seen any fireballs with my reloads in the afternoon.

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+1 I love my BRT covert comp... and it adds no noticeable weight or length to the end of your barrel.

Posted: 2/25/2016 8:46:29 PM EDT

[#36]

I've not noticed any difference shooting my 7.5 pistol that has the dpms levang on it and my 16inch with a rainer arms brake on it.

Cheap and effective.

Posted: 2/25/2016 10:52:45 PM EDT

[#37]

I use a Troy Claymore on my 7.5 AR Pistol.

Posted: 2/28/2016 10:30:25 PM EDT

[#38]

Any issues fabricating a krink type break from 925 Inconel? Got some scrap to use up.

Posted: 2/28/2016 11:38:07 PM EDT

[#39]

Any issues fabricating a krink type break from 925 Inconel? Got some scrap to use up.

Does anyone have a link to the OG patent?
I don't want to inadvertently make a suppressor :-/