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Street Custom 'Mercy' Veterinary Tranquilizer Gun

A commercially available veterinary tranquilizer rifle modified for anti-personnel use by loading darts with human-dosed sedatives instead of animal compounds. The weapon fires pneumatic darts capable of delivering a fast-acting sedative that renders a human-sized target unconscious within 30-60 seconds depending on body mass and augmentation level. The tranquilizer rifle is legally available for purchase in most jurisdictions as an animal control tool, making acquisition trivially easy. The sedative compounds are sourced from veterinary supply or synthesized from commercially available precursors.

name

Street Custom 'Mercy' Veterinary Tranquilizer Gun

aliases

Mercy
Tranq Gun
Animal Control
Sleeper

category

improvised

manufacturer

Street Custom

tier availability

Tier 1+

legality

Legal as veterinary tool — illegal with human-dosed loads

base technologies

Pneumatic dart delivery
Sedative compound dosing
Modified veterinary equipment

specifications

propulsion: Compressed CO2, 90 m/s
range: 10-50 meters
sedative: Modified veterinary compound, human-dosed
onset: 30-60 seconds
effect duration: 2-4 hours depending on dose
magazine: 5 darts
weight: 3.2 kg
acoustic signature: 45 dB

story hooks

A series of abductions in Tier 2 all involve victims who remember nothing between a sharp sting and waking up hours later in an unfamiliar location — the dart wounds are consistent with modified veterinary equipment.
A street medic has been using Mercy darts as an improvised anesthetic for field surgery in Tier 1 — the dosing is imprecise and dangerous, but the alternative is operating on conscious patients.

related entities

Carrion Defense Works Field Surgical Kit FSK-6
Charnel Propulsion
Ezio Kaboré-Malhotra
Ossuary Arms Memento Vivere OA-7 'Momento'
SentryGuard PepperShot PS-1 'Sting'
TESSERA PG-2 'Signature'

physical description

visual profile	A sleek, purpose-built rifle with a distinctly medical aesthetic—part sporting equipment, part clinical instrument. The silhouette is lean and ergonomic, lacking the aggressive angles of lethal firearms. The barrel is noticeably wider than conventional rifles, housing the pneumatic mechanism. Overall impression is utilitarian and precise rather than militaristic.
dimensions	104 cm length, 6.2 cm barrel diameter, 28 cm stock depth
weight description	Balanced and light in hand—3.2 kg distributes evenly across the frame, making it feel almost delicate compared to ballistic rifles. No top-heavy sensation; the weight sits naturally in the shoulder pocket.
primary material	Anodized aluminum alloy frame with reinforced polymer composite handguard and stock. Precision-machined steel barrel and pneumatic chamber.
finish	Matte anthracite with polished aluminum accents around the CO2 valve assembly. Light surface oxidation on the barrel from field use suggests regular maintenance.
color scheme	Charcoal gray primary with brushed steel pneumatic components and subtle emerald-green detail trim around the trigger guard and pressure gauge
grip texture	Rubberized polymer grip with shallow diamond knurling for secure handling even in wet conditions. Cool to the touch, slightly tacky from age.
distinctive features	Visible digital pressure gauge mounted on the side of the pneumatic chamber (reads 0-300 bar in glowing cyan LED) Dart magazine with staggered 5-round capacity—translucent polycarbonate housing reveals neon-colored dart vials inside Oversized, smooth dart breach with safety collar to prevent accidental discharge Whisper-quiet CO2 regulator with minimal mechanical noise—custom sound dampening material visible around valve Custom engravings along the receiver: 'MERCY' in clean sans-serif lettering, plus serial number marked in faded ink Lightweight picatinny rail for optional optics—currently bare but showing ghost marks from previous scope installation Small medical red-cross decal peeling at the edge of the stock—faded by sun exposure
manufacturer markings	Discreet 'Street Custom' logo etched into the lower receiver near the trigger group. Original veterinary manufacturer's marks partially ground off but still faintly visible. Serial number stamped in worn numeric font on the aluminum frame.
condition typical	Well-maintained but field-worn. No rust, but surface shows microabrasions from handling and storage in urban environments. The pressure gauge glass is slightly cloudy from age. Dart magazine shows repeated loading marks. Quiet, efficient operation suggests competent care despite its improvised classification.

image prompt

Close-up product photography of a Street Custom 'Mercy' veterinary tranquilizer rifle lying on a brushed black steel surface. Shot from a 3/4 angle with dramatic side-lighting emphasizing the matte anthracite finish and polished pneumatic components. A gloved hand (tactical leather, faintly worn) steadies the rifle near the grip. The translucent dart magazine glows under light, revealing luminescent sedative vials inside. Neo-noir urban aesthetic: cyan LED pressure gauge glows softly, reflecting off the barrel. Focus pulls the distinctive 'MERCY' engraving into sharp relief. Dark urban studio backdrop with faint neon wash in the shadows. Shallow depth of field isolates the weapon's medical-clinical hybrid design. --ar 3:2 --v 6

visual prompt