Description

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.

Additional information

mycustom	Caliber#6MM, 6.5 Creedmoor, 30 Cal Variations# American Precision Arms, Gen 4 Little Bastard, Self Timing, Nitride, 5/8"x24 Threads, 2.70" OAL 1" Diameter, 30 Cal, American Precision Arms, Gen 4 Little Bastard, Self Timing, Stainless, 5/8"x24 Threads, 2.70" OAL 1" Diameter, 30 Cal