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Vespid Dynamics Tracker Round System TRS-4 'Breadcrumb'

A modified rifle system that fires rounds containing a micro-transmitter that embeds in the target on impact and broadcasts location data for up to 72 hours. The TRS-4 round is a low-velocity subsonic projectile designed to penetrate clothing and embed in subcutaneous tissue without causing significant injury — the goal is tagging, not killing. The embedded transmitter is smaller than a grain of rice and broadcasts on a frequency detectable by Vespid's proprietary tracking receivers at ranges up to 5 kilometers. The round's low velocity means it feels like a hard punch rather than a gunshot, and many targets do not realize they have been tagged until the transmitter is discovered during medical examination.

rifle gun ai surveillance ubc medical injury rain clothing fire tier 3 lethal

name

Vespid Dynamics Tracker Round System TRS-4 'Breadcrumb'

aliases

Breadcrumb
TRS-4
Tracker Bullet
Tag Round

category

rifle

manufacturer

VESPID DYNAMICS

tier availability

Tier 3+

legality

Restricted — authorized surveillance operations

base technologies

Micro-transmitter projectile embedding
Low-velocity subcutaneous delivery
Long-range location broadcast technology

specifications

caliber: 8mm subsonic tracker round
muzzle velocity: 90 m/s — subcutaneous embedding velocity
effective range: 10-40 meters
transmitter size: 2mm x 1mm micro-chip
broadcast duration: 72 hours
tracking range: 5 kilometers with Vespid receiver
magazine: 6 rounds
weight: 2.5 kg rifle
injury profile: Minimal — subcutaneous embedding with bruising

story hooks

A player character discovers a micro-transmitter embedded in their shoulder that they do not remember receiving — someone tagged them with a TRS-4 and has been tracking their movements for days.
A modified TRS-4 round has been developed that delivers a micro-dose of sedative along with the transmitter — targets fall asleep within minutes and wake up tagged.

related entities

Nika Svensson-Kone
Ossuary Arms Memento Mori OA-3 'Wake'
Ossuary Arms Memento Vivere OA-7 'Momento'
The Riveters' Round
Tshiamo Vukić-Arellano
Vespid Dynamics

physical description

visual profile	A sleek, purposeful rifle with a compact profile optimized for precision tracking rather than firepower. The design emphasizes control and accuracy over intimidation — it reads as a specialist's tool, almost clinical in its aesthetic. The barrel is notably shorter and thinner than traditional rifles, tapering to a precise muzzle.
dimensions	Overall length: 68 cm \| Barrel length: 28 cm \| Width at receiver: 5 cm \| Height with sight rail: 12 cm
weight description	Balanced and manageable at 2.5 kg — lighter than combat rifles, with weight distributed toward the grip for stability during precise aiming. Feels purposeful in hand without the heft of lethal systems.
primary material	Aircraft-grade aluminum receiver with polymer composite furniture. The barrel is treated steel with hardened coating to maintain micro-round tolerances.
finish	Matte gunmetal gray with brushed aluminum accents. The receiver shows a subtle anodized finish with minimal reflection — designed for surveillance operations where discretion matters.
color scheme	Charcoal gray primary body with brushed steel receiver section. Accent highlighting in cold silver along the rail system and charging handle.
grip texture	Textured polymer grip with subtle vertical ridging — designed for gloved operation. Non-slip but quiet, with minimal squeaking. A small rubberized thumb rest on the left side.
distinctive features	Ultra-compact 28cm barrel with precision rifling visible at muzzle Rail-mounted Vespid proprietary micro-sight (small, angular optics) Subtle transmitter loading indicator on the right side of the receiver — a small circular window showing remaining rounds Magazine tube marked with faint Vespid hexagon patterns Integrated sound dampening shroud around barrel (not a true suppressor, but reduces mechanical noise) Charging handle with oversize knob for easy operation without lifting eye from sight Small status LED port on the grip area (indicates round load status and transmitter health)
manufacturer markings	VESPID DYNAMICS engraved in sharp sans-serif font on the upper receiver, just forward of the rear sight rail. Serial number stamped on the left side of the receiver. Small hexagonal Vespid corporate logo stamped near the magazine well. QR code for registration etched on the grip.
condition typical	Field-maintained and meticulous — surveillance tools are kept in premium condition. Likely shows light wear on grip areas and minimal dust on exterior. Transmitter loading indicator may show minor smudging from repeated use. Professional operators keep it clean; the penalty for a failed tag is investigative failure.

image prompt

Product photography of a Vespid Dynamics TRS-4 'Breadcrumb' tracking rifle system. The rifle is positioned on a dark matte surface, slightly angled 45 degrees to show the left side profile and distinctive compact barrel. Dramatic side-lighting from the upper left casts sharp shadows, highlighting the brushed aluminum receiver and matte gray polymer. The micro-sight rail and charging handle are clearly visible. A gloved hand in matte tactical black leather enters frame from the right, gripping the textured polymer grip. The transmitter loading indicator glows subtly with a cool blue LED. Background is deep charcoal with slight bokeh of circuit patterns. Neo-noir urban aesthetic with clinical precision. Studio lighting emphasizes the tool's refined engineering and surveillance purpose. --ar 3:2 --v 6

visual prompt