HK Army Turbine Stainless Steel Threaded Regulator Replacement Bonnet External Marker Upgrades If you have the stock

If you have the stock breech please purchase the standard bolt

MOLLE style webbing

Realistic loading and firing operations help keep immersion at max

Many drivers designed for slower arm speeds have poor flight integrity

The electronic trigger system allows you to utilize different modes

HK Army Turbine Stainless Steel Threaded Regulator Replacement Bonnet External Marker Upgrades If you have the stockUpgrade your Turbine Pro Regulator with the Turbine Stainless Steel Threaded Cap, engineered for players who demand maximum strength and long term reliability. Precision machined from stainless steel, this replacement cap is designed to significantly increase the durability of the regulator threading while maintaining perfect alignment every time you air up. Installation is quick and simple, swap out your existing threaded cap in minutes with an allen