AR Tactical X-68 / IntruBuster Springs — Stock, CO₂ Power & HPA Power

Choose the correct replacement or power spring for your Pistelle X-68 or Mercury Rise IntruBuster.
Spring Options & Pricing
60 mm Stock Replacement — $10 | 1.6 mm wire
Factory-size replacement spring for restoring the launcher to its standard spring configuration. This is the stock spring and is not intended as a power upgrade.
50 mm AR Power Spring — $15 | 1.8 mm wire | CO₂ Recommended
The shorter 50 mm spring uses thicker 1.8 mm wire for increased spring strength while remaining better suited to the limited air supply of a 12 g CO₂ cartridge.
60 mm AR Power Spring — $15 | 1.8 mm wire | HPA Recommended
Maintains the stock 60 mm length while upgrading from 1.6 mm to 1.8 mm wire. Recommended for HPA configurations with a larger and more consistent air supply.
Verified Compatibility
Pistelle X-68
Mercury Rise IntruBuster GEN1
Mercury Rise IntruBuster GEN2
Important Performance Notes
Power springs can increase air consumption.
CO₂ shot count may decrease, particularly with stronger spring configurations.
Actual performance depends on pressure, temperature, launcher tolerances, barrel setup, projectile weight, and other modifications.
Chronograph testing is strongly recommended after installation.
Never exceed the launcher or air-system manufacturer’s rated operating pressure.
What’s Included
1 × spring in the selected configuration. Launcher and installation tools are not included.