Simply put. these bolts rock.

The smoothest operating bolt kit that you will find.. Anywhere !!! Expect shot counts ranging from 1200 to 1300+ shots using a 68/4500 psi tank.

Our refined high performance kit greatly enhances airflow while reducing o-ring friction.

Heck. its even an officially licensed product. revised bolt thats 2.6gr. lighter than before improved shot count NDZ bolts can run the lowest input pressures due to larger volume capcity ultra flow aluminum bolt that's now even lighter and takes up LESS internal volume for lower input pressures helps eliminates first shot drop off (FSDO) by reducing friction ultra smooth operation using low o-ring friction and very smooth surface finishes increased R.O.F.and in many cases maxed out includes new rear bumper.