Reviewer:
Andrew Watkins from Arnold, PA United States
I bought this along with a thread alignment tool from CNCWarrior.
Using the TAT, the process was VERY simple. I'm not a machinist, but using their tool I was confident I could get concentric threads. All told it took me about thirty minutes to thread the barrel and install this brake. Most of that in indexing the brake.
But how did it perform? Well, I had sunny weather here over the weekend so I set up my rifle in a sled and fired off a few rounds of mil-surp ammo. Without the brake, just bare muzzle, the sled moved almost 18" on the table. Screwing the brake on, I fired again and the sled only moved a bit over 9". So, it cuts the recoil just about in half! Fired from the shoulder, it is definitely an improvement.
Compared to what I would have to pay for a .308 brake elsewhere, this is an absolute steal for under $40.
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1 of 1 people found the following review helpful:
Great device for cheap!
October 23, 2016
Reviewer:
Colton Bujol from Lafayette , LA United States
Installed myself on a .308 converted mas36 with die, thread starter, and die handle also purchased from cnc. Very easy job takes about 30 min, moderate knowledge, and concentration. Very nicely machined and finished. A single large burr was easily removed. The break performs very well with about a 30% reduction in recoil of both 7.62x51 and .308.The gun is much more enjoyable to handle. I would definitely recommend this product and will be making future purchases.
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0 of 0 people found the following review helpful:
Installing on H&K or PTR32 w/M15x1 RH threads
June 28, 2016
Reviewer:
Slick from On the Leftist Coast
This compensator seats on a 45-degree bevel flange behind the barrel threads. In most cases, you will need to take steps to achieve proper indexing of the device. I used a 45-degree hand reamer from Harbor Freight (item #65338) for $5.
Ream the beveled surface inside the compensator until it indexes just before 12 o-clock. I added some lock-tite and tightened it up placing a rod that just fit through the side vents. It's perfect!
Use caution while reaming and check fit OFTEN. I only needed to go a short way and wound up over-indexing the first time. There's plenty of material and it was a simple matter to spend 15-minutes to ream enough for an extra full turn. I was extra careful and got it just right - so cut only a little at a time. This reamer has carbide blades and cuts surprisingly fast.
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2 of 2 people found the following review helpful:
PTR 91 PDW
January 17, 2016
Reviewer:
Tim from Houston, TX United States
Replaced the factory bird cage with this cross brake. It works VERY well at keeping the muzzle climb and shift down. Also works very well at making people at the range hate you. The fireballs and side concussions are big and loud. You will feel it.
Aesthetics and build quality of this brake are great. For the price you save over "big name" brakes you can't go wrong and side by side you'd never guess this was under $40.
If you are going to use this on a PTR 91 PDW you will need three AR10 style crush washers to clock it correctly. Easy and cheap to pick up. The M15x1 RH threads on nice and smooth and once clocked you won't need any rockset.
Tames the mosin 
