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Heretic Labs Article I MTW Spec HPA Speedsoft Rifle

Heretic Labs



Heretic Labs Article I

MTW Spec HPA Speedsoft Rifle

Heretic Labs proposes the ultimate HPA speedsoft instrument. In Article I, only that which is necessary for performance is included, shedding the weight of milsim orthodoxy. It starts with a rugged but skeletonized MTW CNC billet aluminum receiver. Gone are the charging handle, buffer tube, and stock. In place of a rail, the genuine carbon fiber outer barrel keeps the front end light with a total pistol weight of 2.1lb.

The Article I is powered by the proven and reliable INFERNO Gen 2 HPA engine, coupled with an upgraded control board with a new binary trigger option. The new CNC speed trigger features an innovative Delrin bearing that delivers an incredibly smooth pull and optional adjustments for pre-travel, post-travel, and actuation.

Built on the MTW-Spec, the Article I is compatible with countless MTW-Spec and real-steel aftermarket components, giving it limitless customizability.


  • Skeletonized MTW-Spec CNC Billet Aluminum Receiver set
  • Genuine Carbon Fiber Outer Barrel with 150mm inner barrel
  • Inferno Gen 2 with Heretic Labs programming and binary fire mode
  • PTS EPM-MTW mag with empty mag detection
  • CNC Speed trigger with low friction bearing and travel adjustment


Weight 2.1 lbs
Input Pressure 60-140 psi
Estimated Energy Range 0.8 – 1.65 J
ROF 5-35 RPS adjustable
Battery input JST 6-8V
Colors Midnight Black, Amethyst Purple, Torch Orange, Quicksilver Silver


Heretic Labs Article I User Manual

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