Street Custom 'Cigarette' Pen Gun

improvised firearm

Arcturus Defense Solutions Crowd Control SMG ACSM-3 'Shepherd'

smg

Tessera Neural Assault System TNAS-1 'Puppeteer'

assault_rifle

Ablative Charge Disruption Rifle ACDR-2 'Sandpaper'

cyber

Acoustic Cavity Resonance Pistol ACRP-2 'Hollowpoint'

exotic

Acoustic Marrow Shear Rifle AMSR-6 'Tutor'

exotic

Arcturus Defense Solutions Concussive Breach Charge CBC-3 'Knocker'

explosive

Arcturus Defense Solutions Cryogenic Projector CP-4 'Frostbite'

energy

Arcturus Defense Solutions Directed EMP Rifle DER-5 'Blackout'

electromagnetic

Arcturus Defense Solutions Graviton Shield Projector GSP-1 'Aegis'

heavy

Arcturus Defense Solutions Kinetic Denial System KDS-4 'Bouncer'

heavy

Arcturus Defense Solutions Kinetic Impactor Round KIR-10 'Hammerfall'

rifle

Arcturus Defense Solutions Pulse Carbine PC-6 'Heartbeat'

electromagnetic

Arcturus Defense Solutions Orbital Strike Designator OSD-1 'Finger of God'

heavy

Arcturus Defense Solutions Microwave Area Denial MAD-3 'Sunburn'

energy

Arcturus Defense Solutions Magnetic Accelerator Rifle MAR-8 'Longbow'

rifle

Autonomous Swarm Dispersal Unit ASDU-3 'Locust'

drone

Autonomous Ferrofluid Denial Platform AFDP-2 'Tidemark'

drone

Arcturus Defense Solutions Thermal Lance TL-9 'Sunstroke'

energy

Autonomous Adhesive Denial Drone AADD-2 'Barnacle'

drone

Axiom Systems Biometric Lock Rifle BLR-3 'Personal'

rifle

Autonomous Swarm Dispersal Unit ASDU-4 'Locust'

drone

Axiom Systems Cognitive Grenade CG-1 'Brainstorm'

electromagnetic

Axiom Systems Perception Filter Rounds PFR-1 'Blind Spot'

exotic

Axiom Systems Synapse Interruptor SI-3 'Stutter'

electromagnetic

Axiom Systems Cortical Bomb CB-1 'Leash'

cyber-integrated

Axiom Systems Neural Disruptor ND-2 'Migraine'

electromagnetic

Ballistic Resonance Carbine BRC-6 'Kettledrum'

firearm

Axonal Stretch Resonance Lance

firearm

Bioelectric Cascade Charge

explosive

Barometric Implosion Carbine BIC-5 'Sinkhole'

cyber

Bioelectric Induction Lance BIL-3 'Lamprey'

melee

Biometric Denial Charge BDC-1

explosive

Bioluminescent Acoustic Disruptor BAD-2 'Choral'

exotic

Capillary Disruption Pistol CDP-2 'Bruiser'

firearm

Biophotonic Retinal Cascade Emitter BRCE-5 'Flashpoint'

energy

Carrion Defense Works Bone Saw BS-3 'Butcher'

melee

Capacitive Nerve Induction Lance CNIL-1 'Threadneedle'

energy

Carrion Defense Works Fragmentation Sleeve FS-2 'Shrapnel Hug'

explosive

Carrion Defense Works Entropic Shotgun ES-4 'Ragnarok'

shotgun

Carrion Defense Works Hemorrhage Rifle HR-6 'Bloodletter'

rifle

Carrion Defense Works Nerve Agent Micro-Dart System NAMDS-1 'Whisper'

exotic

Carrion Defense Works Miasma Projector MP-5 'Plague Bearer'

chemical

Carrion Defense Works Marrow Drill MD-7 'Dentist'

pistol

Carrion Defense Works Necrotizing Agent Sprayer NAS-2 'Rot'

chemical

Carrion Defense Works Ricochet Pistol RCH-1 'Billiard'

pistol

Carrion Defense Works Neural Lash NL-3 'Agony'

cyber-integrated

Carrion Defense Works Pathogen Delivery System PDS-4 'Typhoid'

chemical

Catalytic Aerosol Mortar CAM-3 'Lungful'

explosive

Catalytic Vapor Dispersal Charge CVDC-5

explosive

Cavitation Pulse Carbine CPC-2 'Bends'

firearm

Catalytic Interstitial Desiccation Drone CIDD-3 'Husk'

drone

Catalytic Spore Dispersal Drone CSDD-3 'Mulch'

drone

Cavitation Pulse Knuckles CPK-5 'Bloodwater'

melee

Cerulean Phosphene Projector CPP-3 'Phantom Light'

exotic

Cochlear Resonant Hemorrhage Projector

cyber

Coherent Thermal Excitation Rifle CTER-7 'Ashmaker'

energy

Coherent Radiation Scalpel CRS-7 'Suture'

energy

Corneal Piezoelectric Delamination Pistol

cyber

Cryogenic Dendrite Scatter Cannon CDSC-4 'Frostbite'

exotic

Coronal Discharge Projector CDP-9 'Sunburn'

exotic

Cortical Bleed Emitter CBE-4 'Lacuna'

cyber

Counter-Personnel Loiter Munition CPLM-7 'Patience'

drone

Crystalline Synovial Pressure Rifle CSPR-2 'Kneemaker'

exotic

Cryogenic Fracture Disbursement Mine CFDM-4

explosive

Dermal Induction Flayer DIF-2 'Saltwater'

exotic

Cryogenic Pressure Emitter CPE-2 'Frostbite'

energy

Dielectric Filament Anchor Drone DFAD-1 'Cobweb'

drone

Dielectric Hemorrhage Emitter DHE-4 'Blister'

energy

Dielectric Phase Inversion Glove DPIG-4 'Secondskin'

exotic

Dielectric Vitreous Humor Agitator DVHA-2 'Snowglobe'

exotic

Electrochemical Dissolution Sprayer EDS-2 'Lacquer'

exotic

Directed Overpressure Charge

explosive

Directed Oxidation Lance DOL-3 'Rustmaker'

cyber

Electrokinetic Pulse Drone EPD-3 'Thunderhead'

drone

Electrochemical Vapor Seeding Drone EVSD-4 'Rainmaker'

drone

Electrolytic Bone Density Projector EBDP-4 'Chalk'

energy

Electrostatic Adipose Polarization Drone EAPD-2 'Render'

drone

Electromagnetic Overpressure Charge EOC-8

explosive

Electrostatic Dermal Adhesion Projector

exotic

Electromagnetic Pulse Grenade EPG-5 'Deadstop'

explosive

Electrothermal Chemical Carbine ETCC-5 'Flashpoint'

firearm

Electrothermal Compression Lance ETCL-9 'Ironlung'

energy

Electrostatic Needle Array Rifle ENAR-3 'Porcupine'

firearm

Electrostatic Flensing Projector EFP-1 'Skinreader'

energy

Endolymphatic Pressure Cascade Rifle

exotic

Endothermic Synovial Disruption Rifle ESDR-1 'Lockjaw'

energy

Endocrine Cascade Volatilization Lance ECVL-5 'Burnout'

cyber

Ferroelectric Shatter Sidearm FESA-2 'Gravel'

exotic

Ferrofluid Induction Cannon FIC-6 'Ironbloom'

energy

Ferrofluid Dermal Infiltration Drone FDID-6 'Ironblush'

drone

Entropic Dielectric Pulse Emitter EDPE-5 'Candle'

energy

Galvanic Myofibril Lash

melee

Galvanic Marrow Projector GMP-1 'Marrowbone'

cyber

Galvanic Interstitial Fluid Displacement Lance

exotic

Galvanic Disruption Gauntlet GDG-2 'Palsy'

melee

Galvanic Periosteal Fatigue Emitter GPFE-4 'Hairline'

exotic

Galvanic Vapor Diffusion Pistol GVDP-1 'Saltlick'

exotic

Gauss Flechette Repeater GFR-3 'Needlerain'

firearm

Gravimetric Induction Pistol GIP-4 'Undertow'

energy

Arcturus Defense Solutions Kinetic Impactor Round KIR-10 'Hammerfall'

A heavy-caliber anti-materiel round designed for the Arcturus AM-10 platform that uses a two-stage propulsion system — conventional propellant for initial acceleration followed by a secondary rocket motor that ignites after 50 meters, boosting the 20mm tungsten penetrator to a terminal velocity that exceeds any conventional rifle round. The KIR-10 was designed to defeat next-generation reactive armor systems that use explosive countermeasures to deflect standard anti-materiel rounds — the rocket-boosted second stage arrives too fast for reactive systems to respond. Against personnel, the round is grotesquely excessive, but its use against augmented targets with military-grade armor implants has been documented.

Arcturus Defense Solutions

rifle augment ai vehicle armor explosive fire tier 5 lethal

name

Arcturus Defense Solutions Kinetic Impactor Round KIR-10 'Hammerfall'

aliases

Hammerfall
KIR-10
Heavy Round
Thor Shot

category

rifle

manufacturer

ARCTURUS DEFENSE SOLUTIONS

tier availability

Tier 5

legality

Military restricted — anti-materiel authorization

base technologies

Dual-stage propulsion projectile engineering
Rocket-boosted anti-materiel design
Reactive armor defeat ballistics

specifications

caliber: 20mm tungsten penetrator
stage 1: Conventional propellant, 600 m/s
stage 2: Rocket motor ignition at 50m, terminal velocity 1,800 m/s
effective range: 100-1,500 meters
reactive armor defeat: Arrives before countermeasure activation
magazine: 5 rounds in AM-10 platform
round weight: 180g
rifle weight: 14 kg
propellant: Dual-stage — chemical + solid rocket

story hooks

A KIR-10 round was fired through the engine block of an armored convoy vehicle, punching through both sides — the shooter was over a kilometer away and the reactive armor never triggered.
Arcturus is field testing KIR-10 rounds with a third stage — a terminal guidance package that allows the round to adjust course in the final 100 meters of flight.

related entities

Arcturus Defense Solutions
Charnel Propulsion
Nika Svensson-Kone
Tessera Corponation Palimpsest Identity Engine
The Riveters' Round
Vantablack FH-20 'Convoy'

physical description

visual profile	A brutalist cartridge with an aggressive, military aesthetic. The round presents as a massive cylindrical projectile with a pronounced ogival tip and a distinctly segmented body — the separation between conventional and rocket-boosted stages is visibly marked by a circumferential seam and heat-scorched aluminum ring. The entire assembly has the menacing geometry of purpose-built destruction.
dimensions	Overall length: 127mm. Bullet diameter (20mm tungsten penetrator): 20.3mm. Case length: 98mm. Rocket motor housing diameter: 22mm. Appears oversized even compared to other anti-materiel rounds.
weight description	Exceptionally dense and hefty — 180g creates a substantial feel despite compact form factor. The tungsten penetrator core loads forward weight, creating an unbalanced, nose-heavy impression that suggests kinetic power.
primary material	Tungsten carbide penetrator core, brass composite case with embedded aluminum alloy rocket motor housing. Structural integrity reinforced with carbon-polymer sabot collar.
finish	Satin brass casing with oxidized dark patches from manufacturing heat stress. The rocket motor section features a distinctive burnt-orange anodized aluminum collar. Tungsten tip has a gunmetal gray, slightly textured finish from tungsten carbide working.
color scheme	Burnished brass primary, charcoal-gray tungsten penetrator, burnt-orange rocket motor band accent. Subtle scorch marks and carbon streaking suggest field use or bench-testing.
grip texture	Not applicable — designed as a magazine-loaded projectile. The case neck features subtle knurling for loading assistance.
distinctive features	Visible circumferential seam marking stage separation point at 50mm mark Burnt-orange anodized aluminum rocket motor housing ring Etched serial number array on case side (ADS-KIR10-5STAGE nomenclature) Shallow concentric grooves around ogival tip for aerodynamic stability Microscopic ablation scarring on penetrator tip from velocity testing Hermetically sealed rocket motor ignition port (threaded brass plug) Propellant charge inspection window on aft section (transparent polymer inlay)
manufacturer markings	Arcturus Defense Solutions logo embossed on brass case at midpoint. Text reads: 'ARCTURUS KIR-10 HAMMERFALL \| 20MM \| DUAL-STAGE \| MIL-RESTRICTED' in 2mm serif lettering. Serial batch code stamped in tiny characters on the aluminum rocket collar. NATO compliance marking laser-etched on penetrator.
condition typical	Field-ready, pristine specimens show minimal wear; however, ammunition typically exhibits micro-oxidation on brass casings and slight polymer discoloration from thermal cycling in combat conditions. Storage marks from magazine compression visible on sabot collar.

image prompt

Professional weapons catalog photograph of the Arcturus KIR-10 'Hammerfall' 20mm kinetic impactor round. The cartridge is positioned horizontally on a matte black steel surface, slightly angled to showcase the two-stage separation seam and burnt-orange rocket motor collar. Dramatic side-lighting from the left creates sharp shadows defining the ogival tungsten penetrator tip and emphasizes the material transitions between brass casing and anodized aluminum sections. The penetrator tip catches cool rim-light. Shallow depth of field keeps the round in sharp focus. Hyperrealistic detail showing serial markings, ablation scarring on the tip, and the faint propellant charge inspection window. Neo-noir urban aesthetic: cool color grading with slight teal tint in shadows, slight chromatic aberration at edges, subtle holographic lens flare suggesting military targeting systems. Technical overlay visible in corner (barely): ballistic trajectory data. Stealth-tech matte textures contrasted against polished metals. --ar 3:2 --v 6

visual prompt