Precision Reflex - Product Reviews
MSTN QC Brake 5.56MM (223) black - Product Review
The 5.56 MSTN Quiet Control Brake / Compensator has a system of ports to reduce the felt recoil and the climb of the muzzle and to the right. Brake has a black nitrite finish.
Item: 05-0089B  Ample Stock
Manufacturer: PRI
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Average Rating
 5 stars
(based on 2 reviews)
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All Reviews For This Product
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Reviewed By: Michael C.
Review Date: 5/12/2017
Built two 22 Nosler's for varmint killing. One has a quick change suppressor mount but the other has the Quiet Control Brake. Used it first on a 5.56 Wylde just to see how loud it was at shooters ear and down the firing line. One of very few muzzle brakes ever put on a 5.56 AR 15 that didn't drive people mad up and down the line. Even on a 22 Nosler don't see people three tables over jump out of their shoes when the overbore cartridge barks. Had totally given up on 5.56 muzzle brakes as a favor to others at the range but now have a viable option in the Quiet Control Brake and not only does it live up to its name with sound signature, it really keeps a rifle shooting flat and eliminates climb as well as any have tried and better than most. It really shows its capability with the 22 Nosler when need to get a quick second shot on a distant coyote or ground hog before it realizes is in danger while your readjusting your dope for wind or distance.

Reviewed By: Michael K.
Review Date: 6/26/2014
I bought my first PRI product about 6 years ago. It was the 6.8 SPC Mark 12 Mod 0 upper. The upper is the most accurate semi auto I have ever shot. I can usually shoot a sub minute at 100 yards every time I take it to the range, or in precision rifle competition. Secondly, the MSTN QC Brake is unreal. On the 6.8 it has reduced the recoil down to less than a .223, and you can keep your eyes on target without loosing the target through any variable high power scope you choose. Just lately I bought two MSTN QC Brakes for my Mk18 and my M4/Law enforcement use. The reduced recoil is surreal to say the least. Both of my ARs have full auto capability. The recoil is literally equal to or less than a .22 long rifle. Yes, I could not believe it so I allowed others to shoot and give their assessment. Everyone that shot my M4 and the Mk18 just stood their and could not believe the almost "zero" recoil, even with M855 ammunition it still had the same result. Best muzzle brake I have ever used and I still can not believe the .22 long rifle I just shot, but looks just like my old Mk18 I owned a minute prior to shooting it. Both people that shot my rifles have already, or are in the process of buying the MSTN brake for their AR15s. Thanks PRI for the best products on the market!!!!!
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