The new calibrated U.R.P tunable top ports have been designed for maximum adjustment making the Gen 4 line of brakes the flattest shooting brakes available hands down. By testing port size, location, and how the gas feeds into them, we have been able to make these tunable top ports capable of generating zero vertical movement.
“Magpul MAG556BLK PMAG GEN M3 30rd Detachable w/Capacity Window 223 Rem/5.56x45mm NATO Fits AR-15/M16/M4 Black Polymer” has been added to your cart. View cart
| Weight | 0.34 lbs |
|---|---|
| Dimensions | 3.8 × 1.3 × 1.2 in |
| Model | |
| Finish | |
| Thread Pattern | |
| Manufacturer | AMERICAN PRECISION ARMS |
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