
- description
The Lithgow F90 is the third-generation development of the Steyr AUG that Australia first licensed in 1985 as the F88 Austeyr. Lithgow Arms refined the platform across the F88 and F90 generations into a rifle modular enough to swap stocks, receivers and barrels with a single takedown pin — and equipped with features lifted directly from the contracted GBB training rifles supplied to the Australian Army. KWA's licensed airsoft version is unique in the segment: this is one of the very few replicas of a rifle that's never been made available to the civilian market, anywhere in the world. For collectors and milsim players who want something nobody else on the field is running, that scarcity matters.
The two-stage trigger is the platform's signature mechanical feature. Half a pull fires one round in semi-automatic; squeezing the trigger fully through the second stage engages full-auto. The Automatic Lockout (ALO) trigger is a pull tab at the bottom of the trigger that prevents full second-stage travel — meaning you can lock the rifle to semi-only for skirmishes that require it, without needing a separate selector switch. The folding non-reciprocating charging handle stays out of the way during cycling, the extended top picatinny rail handles modern optics, and additional picatinny space at the 3 and 6 o'clock positions takes lights, lasers, and grips. Internally, KWA's hop-up has been redesigned and the bolt carrier improved over their existing GBB line — meaning this isn't just an external rebody of an older rifle, but a genuine refinement of KWA's bullpup platform.
Specifications
| Specification | Detail |
|---|---|
| Licensing | Officially licensed by Lithgow Arms (Australia) |
| Configuration | Bullpup (AUG-derived) |
| Length | ~800mm |
| Weight | 3.53–3.65kg |
| Outer barrel | 480–510mm |
| Inner barrel | 460mm |
| Magazine capacity | 30rd waffle-pattern AUG-style |
| Fire modes | Safe / Semi / Full-Auto (via two-stage trigger) |
| Power source | Green Gas |
| FPS | 380–400 with 0.20g BBs (~1.9J max) |
| Rate of fire | 11–18+ RPS |
| Trigger | Two-stage (half-pull semi, full-squeeze full-auto) |
| Selector | ALO automatic-lockout for semi-only mode |
| Charging handle | Folding, non-reciprocating |
| Rails | Extended top picatinny + 3/6/9 o'clock |
| Takedown | Modular one-pin takedown of stock/receiver/barrel |
| UBGL | Slot for SL40 grenade launcher in trigger housing |
| Hop-up | Improved KWA design |
| Other | Mock adjustable gas block, ambi/adjustable ejection port |
UKARA: As a realistic imitation firearm, this product requires UKARA registration or a valid defence. We verify at checkout. Register by playing 3 games over 56+ days at Skirmish Wycombe Airsoft.