Hand-to-hand combat shown across both trailers — punches and physical fighting without a held weapon. Unarmed fighting is visually established; the control system, damage model and moves are unpublished.
Source: GTA 6 Trailer 1 (motel fight) and Trailer 2 (cargo-plane fight). Confidence level: Speculation.
Modular upgrades compatible with this firearm:
No special traits confirmed for this weapon yet.