FS Hero 4.5K Regulator Marker Upgrades As with all external parts

As with all external parts some modification may be required on a brand to brand basis

P3 or Hero Regulators to approximately 275-300psi

Outer shells designed for tool-less access to all internals

Quick change back plate

Factory original part for the SL-68 II pump gun

FS Hero 4.5K Regulator Marker Upgrades As with all external partsThe new FS Hero regulator features is industry leading with an ultra low profile bonnet and features a tool less adjustable position collar that allows you to change the position of the gauge and fill nipple. The First Strike Hero Regulator also has an adjustable output pressure, simply purchase the desired pressure kit and install only 2 allen keys necessary. FEATURES SPECS Micro Gauge Low Profile Fill Nipple Low Profile Burst Disks(Low and High)