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 MAG571BLK PMAG GEN M2 MOE Black Detachable 30rd 223 Rem/5.56x45mm NATO for AR-15/M16/M4” has been added to your cart. View cart
American Precision Arms G4F5865S Gen 4 Fat Bastard Self Timing Stainless 5/8″x24 Threads 3.30″ OAL 1.10″ Diameter 6.5mm
SKU: SA1343144
UPC: 810131791469
American Precision Arms G4F5865S Gen 4 Fat Bastard Self Timing Stainless 5/8″x24 Threads 3.30″ OAL 1.10″ Diameter 6.5mm
$221.49
Availability: 2 in stock
| Weight | 0.515 lbs |
|---|---|
| Dimensions | 3.8 × 1.3 × 1.2 in |
| Model | |
| Finish | |
| Thread Pattern | |
| Manufacturer | AMERICAN PRECISION ARMS |
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