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Heretic Labs Article I HPA Speedsoft Pistol - Amethyst Purple

Heretic Labs Article I HPA Speedsoft Pistol - Amethyst Purple

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SKU: 5048622093
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Heretic Labs Article I HPA Speedsoft Pistol — Amethyst Purple — Wolverine Airsoft and Heretic Labs' purpose-built HPA speedsoft instrument. Skeletonized MTW billet receiver, genuine carbon fibre outer barrel, INFERNO Gen 2 engine with binary trigger option, and a Delrin-bearing CNC speed trigger. Under 1kg total. Amethyst Purple anodised finish.

The Article I is not a rifle build — it is a speedsoft tool engineered around a single question: what does an HPA platform look like if you strip away everything that isn't needed for tournament-format airsoft? The answer is what you see here. No charging handle. No buffer tube. No stock. No rail. A skeletonized MTW-spec receiver carved out of billet aluminium, a carbon fibre outer barrel where you'd normally have a handguard, and an INFERNO Gen 2 engine running through an upgraded control board. Total weight: under 1kg.

The engineering decisions tell you who this is for. Tournament speedsoft formats reward weight reduction, fire rate, and trigger responsiveness above everything else — you are running on bunkered courses, transitioning targets fast, and the difference between winning and losing a snap exchange is measured in fractions of a second. The Article I removes mass from every component that doesn't directly contribute to firing a BB. What remains is a platform that responds to inputs faster than anything in conventional rifle format can.

The INFERNO Gen 2 engine is the proven Wolverine HPA core, retuned for the Article I with the new control board and Heretic Labs programming. The headline feature is the binary trigger option: in binary mode the gun fires once on trigger pull AND once on trigger release, effectively doubling effective fire rate from a single trigger finger movement. The CNC speed trigger itself runs on a Delrin bearing for an extraordinarily smooth pull, with user-adjustable pre-travel, post-travel and actuation points. Fire rate is adjustable from 5 to 35 RPS, muzzle energy from 0.8 to 1.65 joule (290–420 FPS), all set without opening the gun.

Because the receiver is MTW-spec, the Article I inherits the entire MTW ecosystem of aftermarket parts — grips, triggers, barrel extensions, engine internals, hop chambers. If you want to upgrade or service it later, the parts pool is huge. The carbon fibre outer barrel houses a 150mm inner barrel as standard; swap the inner for a longer or tighter unit and the front end rebalances accordingly.

What's in the box

One Article I in Amethyst Purple. One MTW-spec magazine. O-ring service set. Heretic Labs patch. Manual. Note: HPA tank, regulator, and HPA line are not included — you supply your own air system.

Specifications

Specification Detail
Manufacturer Wolverine Airsoft — Heretic Labs line
Model Article I (Article 1)
Colour Amethyst Purple anodised
Engine Wolverine INFERNO Gen 2 with Heretic Labs control board
Receiver MTW-spec skeletonized billet aluminium
Outer barrel Genuine carbon fibre
Inner barrel 150mm
Trigger CNC speed trigger on Delrin bearing, adjustable pre/post/actuation
Firing modes Semi, full auto, and binary (fire on pull AND release)
Rate of fire 5–35 RPS adjustable
Muzzle energy 0.8–1.65 J (290–420 FPS) adjustable
Weight Under 1kg (approximately 2.1 lb)
Stock provision No stock fitted — current version accepts 1913 picatinny stock accessories on rear plate (if specified)
Compatibility MTW-spec aftermarket parts and accessories
Power requirement HPA — tank, regulator and line supplied separately

Other colourways available

The Article I is produced by Wolverine in five colour configurations. This listing is the Amethyst Purple. If you want a different colour, ask us — the other current production colours are Midnight Black (the latest revision, with a pre-fitted 1913 picatinny stock adapter for folding-stock accessories), Quicksilver (silver), Ultramarine (deep blue, also marketed as the "2024 Update"), and Goblin Green. Internals are identical across the range — only the anodised receiver colour changes.

HPA air system required: the Article I is a complete HPA platform but does not include the air source. You will need an HPA tank, regulator, and HPA line to run it. The engine accepts the standard Wolverine HPA line connection.
💡 Titan Forge Airsoft tip: The Article I is purpose-built for tournament speedsoft — if you're running milsim or general skirmish, an MTW with a stock and handguard is the better tool. If you're running speedsoft formats, this is one of the most refined HPA platforms made. Pair with a quality HPA tank, a precision regulator, and a matched HPA line to complete the air system. Browse our wider Wolverine MTW parts range for accessories.