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Portable bunkers

Modular kill house & shoot house systems A live-fire training house you can reconfigure between serials

Most kill houses are poured once and argued with forever — the layout that suited last year's syllabus is now a wall in the wrong place. Roschcrete builds the ballistic shell as a permanent structure and everything inside it as movable panels, so the same building gives your instructors a new floor plan in an afternoon. The six systems below are supplied and installed as one package, from the same works in Jalandhar that builds the Portable Bunker.

  • 7.62 & 5.56 mmAmmunition classes addressed
  • ≤ 80 dBInternal sound target during live fire
  • BR6 / NIJ IIIGlazing standard
  • 500 × 500 mmCommon panel module

How a modular shoot house is put together

Point at a system to find it in the plan. The outer band is fixed; everything drawn inside it moves.

Plan view of a modular kill house showing the fixed ballistic shell, movable interior walls, floor and ceiling lining, acoustic treatment and glazed observation openings Room 1 Room 2 Room 3
Entry at the bottom left. Rooms 1–3 are formed by wheeled panels, not by structure.
  1. Fixed wall panels

    Composite rubber and steel, anchored to the RCC shell.

  2. Modular walls

    Wheeled, dual-sided panels that set the floor plan.

  3. Ceiling systems

    Ballistic base lining plus an acoustic composite above it.

  4. Floor panels

    Bonded crumb rubber that traps fragments underfoot.

  5. Acoustic insulation

    Perimeter treatment worked to a 80 dB target.

  6. Ballistic glazing

    BR6 observation and door glass in MS frames.

The six systems in detail

01

Fixed wall panels — composite rubber and steel

These are the permanent skin of the training house. Each 500 × 500 × 130 mm panel layers rubber over a hardened steel back, so a round is slowed by the rubber and stopped by the plate rather than thrown back into the room. The ventilated cavity between the two keeps the assembly from behaving like a drum.

Panel size
500 × 500 × 130 mm (±5 mm)
Rubber layer
50 mm shredded, hot-moulded, bonded rubber
Laminated wood
18 mm
Air vent structure
MS 50 mm tubular
Steel backing
10 mm high-carbon plate, 450 HBW
Protective coating
1–2 mm
Cross-section of a fixed wall panel: 50 mm rubber, 18 mm laminated wood, 50 mm ventilated MS structure, 10 mm high-carbon steel plate and a protective coating, 130 mm overall.130 mmRubber 50 mmLaminated wood 18 mmAir vent (MS tubular) 50 mmHigh-carbon steel 10 mmProtective coating 2 mmExisting RCC wall
Layer build-up, drawn to scale. Strike face at the top.

Installation: anchored to the existing RCC walls on MS framed supports using M16 × 190 mm chemical resin anchor rods, galvanised grade 5.8. A 25 mm gap is left at the bottom edge to collect fragments, closed off with anti-ricochet rubber barriers.

02

Modular walls — movable close-combat panels

This is the system that makes the building modular. Each panel is protected on both faces, because in a shoot house every wall is someone's front and someone else's back. They sit on a framed base with locking wheels, so a two-room layout becomes a corridor-and-three-room layout without a contractor on site.

Panel size
500 × 500 × 250 mm
Overall thickness
250–300 mm (±10 mm)
Rubber layers
50 mm hot-moulded, both sides
Wood layers
18 mm laminated, both sides
Air vent structure
MS 50 mm tubular, both sides
Steel backing
10 mm high-carbon plate, 450 HBW
Mobility
Heavy-duty locking wheels on MS frame
Cross-section of a modular wall panel, protected on both faces around a central 10 mm steel plate, 246 mm overall.246 mmRubber 50 mmLaminated wood 18 mmAir vent 50 mmHigh-carbon steel 10 mmAir vent 50 mmLaminated wood 18 mmRubber 50 mm
Layer build-up, drawn to scale. Strike face at the top.

Installation: 25 mm floor clearance for fragment collection, configured on site to the training requirement.

03

Ceiling systems — ballistic lining and acoustic composite

Rounds go up as well as forward. The ceiling is built in two parts: a ballistic base lining bolted to the truss, and an acoustic composite above it that takes the edge off the report before it reaches the roof deck.

Base lining
500 × 500 × 95 mm, M12 galvanised bolts to truss
MS layer
6 mm mild steel
Air void
50 mm ventilation space
Wooden support
36 mm stopper, braced with polyethylene
Acoustic lining
500 × 500 × 100 mm rubber-wood fibre composite
Composition
Crumb rubber granules, cement-composite bonded
Cross-section of the ceiling: a 100 mm acoustic rubber-wood composite above a 36 mm wooden stopper, a 50 mm ventilation void and a 6 mm mild steel base lining.192 mmAcoustic composite 100 mmWooden stopper 36 mmAir void 50 mmMild steel 6 mmExisting truss
Layer build-up, drawn to scale. Strike face at the top.

Installation: the acoustic layer sits above wooden stoppers, which isolate vibration rather than transmitting it into the structure.

04

Floor ballistic panels

A concrete floor sends fragments back at ankle height. These panels replace that surface with 50 mm of polymerically bonded crumb rubber, hot-moulded and cured, which takes the energy out of a downward strike and holds the fragments where they land.

Panel size
500 × 500 × 50 mm
Material
Crumb rubber granules, polymerically bonded
Manufacturing
Hot-moulded, cured
Purpose
Fragment capture, ricochet reduction
Cross-section of the floor: 50 mm of hot-moulded, polymerically bonded crumb rubber laid over the existing slab.50 mmBonded crumb rubber 50 mmExisting floor slab
Layer build-up, drawn to scale. Strike face at the top.

05

Acoustic insulation panels

Hearing loss is the injury a training house actually causes. Perimeter panels on every room-facing and corridor-facing surface bring internal levels down towards 80 dB during live fire, which is what lets a team run repetitions all day instead of a handful of runs.

Minimum thickness
50 mm
Location
All interior perimeter walls
Performance target
≤ 80 dB internal during live fire
Ammunition classes
7.62 mm and 5.56 mm
Mounting
Secured to framed support structure
Cross-section of perimeter acoustic insulation: a 50 mm panel held off the wall on a framed support.100 mmAcoustic panel 50 mmFramed support / cavity 50 mmInterior perimeter wall
Layer build-up, drawn to scale. Strike face at the top.

06

Ballistic-resistant glazing

Instructors need to see the run without standing in it. Observation and door glazing is borosilicate with polycarbonate interlayers, rated to defeat the same ammunition the walls are built for.

Overall thickness
Minimum 40 mm
Glass type
Borosilicate with polycarbonate interlayers
Standard
EN 1063 Class BR6 / NIJ Level III
Ballistic rating
7.62 × 51 mm NATO, 5.56 × 45 mm, 9 mm Parabellum at rated distances
Frame
MS hollow section 75 × 50 × 4 mm, powder-coated
Anchoring
M16 chemical anchors, min. 4 per vertical section
Sealing
Structural silicone at all glass-to-frame joints
Cross-section of BR6 ballistic glazing: borosilicate glass alternating with polycarbonate interlayers, 40 mm minimum overall.40 mmBorosilicate glass 12 mmPolycarbonate interlayer 8 mmBorosilicate glass 12 mmPolycarbonate interlayer 8 mmMS frame 75 x 50 x 4 mm
Layer build-up, drawn to scale. Strike face at the top.

Quality assurance and handover

  • All materials conform to the stated ballistic evaluation standards.
  • Fixings and anchors are certified for both load-bearing and ballistic duty.
  • Representative samples are tested before bulk installation begins.
  • Installation follows site-specific engineer drawings, not a catalogue layout.
  • Post-installation inspection verifies structural integrity and protection before handover.

Who these facilities are built for

Army and paramilitary CQB

Room-clearing and entry drills where the layout has to follow the syllabus, not the other way round.

Police and SWAT units

Urban entry practice inside an existing shed or hall, without pouring a new building.

Indoor firing ranges

Anti-ricochet lining and acoustic treatment retrofitted to a range already in use.

Private training providers

Commercial shoot houses where noise limits and neighbour complaints decide the design.

Roschcrete Technologies also builds the ballistic panels these facilities are lined with. For the panel materials themselves, see FICS Panel and SIFCON Panel; for deployable field structures, see the Portable Bunker system.

Frequently asked questions

What is the difference between a kill house and a shoot house?

None, in practice. Indian and NATO units tend to say kill house; commercial and police training providers more often say shoot house or CQB house. All three describe an enclosed building teams enter and fire live rounds inside.

Can a modular kill house go inside an existing building?

Yes, and that is the usual case. The fixed panels anchor to your existing RCC walls and the ceiling lining bolts to the existing truss, so a shed, hangar or disused hall becomes the shell.

How is the layout changed?

The modular walls run on heavy-duty locking wheels. Unlock, reposition, relock. No cutting, no anchoring, no contractor.

Which ammunition is the facility rated for?

The systems are specified around 7.62 mm and 5.56 mm classes, with glazing rated to EN 1063 BR6 / NIJ Level III, which also covers 9 mm Parabellum.

How is noise handled?

Through two systems working together: 50 mm perimeter acoustic panels and a 100 mm rubber-wood composite ceiling lining, isolated on wooden stoppers. The design target is 80 dB or lower inside the space during live fire.

Do you supply outside India?

Manufacturing is in Jalandhar, Punjab, and the panel modules ship flat. Send your site details on WhatsApp and we will tell you what is workable.

Send us the room, we will send you the layout

Share your building dimensions, the ammunition classes in use and how many rooms you need. You get a system-by-system proposal back, not a brochure.