HK Army Performance Series LOW Pressure 250-300psi, LP3 Piston

Convert your existing HK Army Performance Series regulator to a steady 250–300 psi output with this drop-in LP3 Piston upgrade. It’s the most efficient way to adapt your current air system for high-performance guns that require lower operating pressures without buying a completely new regulator. By swapping out the standard internals for this Belleville shim stack, you get a more responsive recharge rate and a more compact internal profile than a traditional coil spring can provide.

Built on a heavy-duty brass piston, this unit comes with pro-grade O-rings already installed for a solid, leak-free seal. Maintenance is simple and requires minimal tools; the entire shim stack and piston pulls out as one piece, so you can swap the internals in minutes. Just make sure your tank is completely degassed before you start taking the regulator apart.

Features:

• 250–300 PSI low-pressure output
• Belleville shim stack design
• Quick-swap internal assembly
• Durable brass piston construction
• Leak-free O-ring seals included
• Consistent output pressure restoration
• Compatible with Performance Series regulators
• Lightweight and compact profile