American Precision Arms (APA) is known for solving big recoil problems, not small ones. For years competitive shooters have asked them to develop a brake for the off-hand, run-and-gun, “Gas Gun” competitor. However, they found this little recoil problem was a little more dynamic then anticipated. They wanted to give these shooters their “bastard” ports but that wasn’t enough. The competitive shooter needs something really light weight, but even more, tunable.
In response, APA developed the U.R.P. Adjustable Gas System. These aren’t just randomly placed top ports. Every port is place adjacent to the internal “Bastard” tooth where there is maximum pressure build up. This makes the adjustable ports directionally effective. ALSO because their self-timing Gen 2 system the brake is cant-able.
The unique tunable gas system combined with the trademark APA ports work together to achieve a sight picture that does not move when the rifle is fired. There are 8 directional gas ports that can be tuned to counter act you’re U.R.P. (unique recoil profile).
There are 256 combinations to keep your sights on target. To calibrate the brake to your U.R.P., start testing with all the gas screws installed. Pay attention the movement of your Red dot, irons or crosshairs, and begin removing the gas screws, as the recoil requires.
When the gas screws are removed on the right side, the rifle will be shifted left. For the opposite effect, simply remove the screws on the left. The gas holes closer to the nut have a more dramatic effect and the ports closer to the brake crown have a lesser effect. When you find your U.R.P. combination, Threadtite your screws into place.
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