Muzzle device opinions/experiences for SBR...

I've had two different muzzle devices on SBRs and here's my take on them:

1. Yankee Hill Machine's Phantom Comp/Brake: I had this on a 10.5" AR and it made the recoil almost non-existent. Extremely effective. The negative side is that it was REALLY loud. A fireball maker even during daylight.

1. S&J Hardware's 2" Linear Compensator: Put this on a 7.5" AR to (supposedly) help with the cycling. Never had an issue with the rifle so can't say if that made a difference. Sound impulse was definitely directed more towards the front. However, because the AR is so short, the muzzle blast can still be felt if someone was next to you. Very loud as well, and also a fireball maker.

If you want to eliminate noise and flash then you'll probably want to avoid muzzle brakes and look at flash hiders instead.
 
Took the MK18 out today (BCM comp) and I was shooting Norc '97 spam can. I posted before that concussion was pretty bad but for some reason it didn't feel that bad today, sure it's loud and makes a decent fireball but concussion didn't seem too bad from behind the rifle today, must be the beard. I should give the BattleComp a try on this 10.5 tho, I think it did a little better still but that was on a 11.5 and not with Norc ammo.
 
Had a Hera Arms Linear Compensator on mine... great for making tunnels in the snow in front of you. good at reducing the noise IF you directly behind the rifle. Classified as a 'loudener' by everyone else on the range.

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Griffin Armament has a Linear Comp which looks interesting. Hoping CTCS will get these in at some point & the price isn't a ridiculous amount. I'm not sure if I'll try my AAC Brakeout on my Mk18 or not, I may keep the GA FH on and not risk the decibel level to my ears from the AAC.
 
bumping this up as I just now realised it would work with any A2 profile flashhider/comp (like the BCM MOD 0 and Battlecomp 2.0 my rifle are currently sporting)...

so who's bringing it and taking my money?

Trinimon said:
No probs.



Oh man, I just peed my pants a little. That's awesome. Now I could have a FerFran clone without having to get rid of my M4SDIIs. Thanks for the heads up!

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The QD blast shield looks awesome...

I recently contacted Armtac regarding a few Griffin products. I like the taper mount brakes and comps that they offer...they are threaded at the base, and are compatable with the taper mount blast shield, which simply screws on and off. It is a bit slimmer than the QD shield, and in my opinion, looks better. I asked about their availablity, and was told that export permits would be needed to bring them into the country. Nothing that's gonna' happen any time soon, that's for sure...
 
I am curious if and how this Griffin Armament Blast Shield would change the performance/effectiveness of flash hiders and muzzle brakes.
For muzzle brakes, I understand that it would reduce the side blast and concussion, but would it diminish the effectiveness of the brake at reducing recoil?
As for flash hiders, would this blast shield somehow increase muzzle flash?
 
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I use this one my MK18, and I like it a lot. Does it's job without the excessive concussion and blowing your ear drums out. The prongs seem to do a little bit to hide the flash, sort of like a vortex flash hider, which is one of the best in the world.
 
Justins1877 said:
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I use this one my MK18, and I like it a lot. Does it's job without the excessive concussion and blowing your ear drums out. The prongs seem to do a little bit to hide the flash, sort of like a vortex flash hider, which is one of the best in the world.
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I got the ones without the flash hider prongs on my 300BLK and 223 rifles. They're basically the poor man's Battlecomp and I agree, they work great.

Hopefully someone can bring in the blast shield for this season's shooting. :)
 
mildot said:
On my 2 SBR's I run the Precision Armament EFAB and/or the Griffin Armament Flash/Comp. Blast and flash is about the same as a A2.
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Can I ask where you purchased your Precision Armament device? I am interested in their .308 model, the M11. Thanks in advance!
 
Benito said:
I am curious if and how this Griffin Armament Blast Shield would change the performance/effectiveness of flash hiders and muzzle brakes.
For muzzle brakes, I understand that it would reduce the side blast and concussion, but would it diminish the effectiveness of the brake at reducing recoil?
As for flash hiders, would this blast shield somehow increase muzzle flash?
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Yes .... and ...... yes.

Muzzle brakes rely on being able to redirect gases sideways. Obviously the brake cover simply redirects the redirected gases back forward again.

Flash suppressors work by breaking up and dispersing the superheated gases and their associated shockwave. The cover simply redirects all that energy forward in a semi-cohesive flow which allows flash to be generated. There are methods of preventing this but I have yet to see anything like that incorporated into a brake cover.
 
Suputin said:
Yes .... and ...... yes.

Muzzle brakes rely on being able to redirect gases sideways. Obviously the brake cover simply redirects the redirected gases back forward again.

Flash suppressors work by breaking up and dispersing the superheated gases and their associated shockwave. The cover simply redirects all that energy forward in a semi-cohesive flow which allows flash to be generated. There are methods of preventing this but I have yet to see anything like that incorporated into a brake cover.
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:agree: It might look cool but defeats the purpose of putting a flash hider or muzzle brake on.
 
Benito said:
I am curious if and how this Griffin Armament Blast Shield would change the performance/effectiveness of flash hiders and muzzle brakes.
For muzzle brakes, I understand that it would reduce the side blast and concussion, but would it diminish the effectiveness of the brake at reducing recoil?
As for flash hiders, would this blast shield somehow increase muzzle flash?
Click to expand...

Check out this vid on Youtube. It's a demonstartion of the Ferfrans CRD with and without the blast shield installed...similar to the GA blast shield, but the Ferfrans shield is perforated. At 7:45 of the vid, the demo starts. You be the judge...I think there is a subtle difference, as expected. I also think that there may be an even greater difference with the GA shield, because it is a solid body as opposed to a perforated one.

https://www.youtube.com/watch?v=Uo###Qtmn4o
 
of late ive been contemplating getting a loudener on my SBR.
my thought was though ill never need it if i ever DID need it wouldnt i want all that concussive wave and fireballs to be going forward to strike fear and hate in all that are in front of me?

plus it would save me getting all science-y and actually finding one that would work.

 
I tried the Ares Armor Effin-A comp that is completely tuneable for your situation. Armtac has them and they really work. They can work too good forcing the muzzle down too much if too many set screws are removed. They seem to work when shooting in different positions although I'm not sure how that works. All muzzle devices seem to be a series of compromises depending what you are trying to accomplish. Try shooting with a red dot sight to really see where the muzzle is going.
 
RC Fan said:
Can I ask where you purchased your Precision Armament device? I am interested in their .308 model, the M11. Thanks in advance!
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Direct reply from Precision Armaments:
Unfortunately at this time we are not ITAR certified to ship outside of the U.S.

I hope that changes in the near future.
 
strider007 said:
Check out this vid on Youtube. It's a demonstartion of the Ferfrans CRD with and without the blast shield installed...similar to the GA blast shield, but the Ferfrans shield is perforated. At 7:45 of the vid, the demo starts. You be the judge...I think there is a subtle difference, as expected. I also think that there may be an even greater difference with the GA shield, because it is a solid body as opposed to a perforated one.
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Good eyes! I didn't catch those tiny porting on the Ferfrans CRD. I thought they were just dimples.
 
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