HK437 G39 Assault Rifle

HK437 G39 Assault Rifle Low-poly 3D model

Verification details of the FBX file
100% passed
Files
Binary FBX
Scene
No unsupported objects
Geometry
No N-gonsNo faceted geometryManifold geometry
Textures and Materials
PBR texturesNo embed texturesSquare texturesPower of 2 texture sizesAssigned materials
UVs
No UV overlapsUV unwrapped model
Naming
Allowed characters
Description

The HK437 / G39 game ready 3d model in calibre .300 Blackout is another building block of the modular HK433 multi-calibre platform. The special weapon with automatic capability has been designed primarily for use in medium-range tactical applications by special military and police forces who utilise the most compact weapons to achieve the maximum effect on the target.

General information:

  • model is triangulated
  • real world scale
  • correct origins
  • proper names for objects
  • .fbx, .obj, .blend file formats*
  • the model is not intended for 3D printing

Texture sets / Polycount:

  • HK437_Receiver - 4096x4096 / verts 12972, tris 25874
  • HK437_StockB - 4096x4096 / verts 8400, tris 16800
  • HK437_Handguard - 2048x2048 / verts 3350, tris 6750
  • HK437_PistolGrip - 2048x2048 / verts 3100, tris 6150
  • HK_Magazine300 - 2048x2048 / verts 5400, tris 10700
  • HK_Iron Sight - 2048x2048 / verts 2400, tris 4800
  • HK_45D Iron Sight - 2048x2048 / verts 4500, tris 8950
  • SI_AVG S - 1024x1024 / verts 1650, tris 3290
  • Silencer_B3 - 2048x2048 / verts 3500, tris 7000
  • 300_AAC_BLACKOUT - 1024x1024 / verts 650, tris 1300

Textures:

  • PBR Metallic/Roughness: Base color, Metallic, Roughness, Mixed AO, Normal OpenGL
  • Unreal Engine: BaseColor, Normal, OcclusionRoughnessMetallic
  • Unity: AlbedoTransparency, MetallicSmoothness, Normal

If you have any questions feel free to contact me.

*spp file format can be requested after purchase

rjc9000
rjc90002025-09-18 23:58:02 UTC
Absolutely awesome, since (once again) it has only been seen at trade shows and occasional European police promo photos. Is this the "more things from HK" you alluded to, or do you have more HK goodies stored away?
turbojet-3d
turbojet-3d2025-09-19 21:16:40 UTC
Thank you! I have another goodies related to this HK, but they are not exactly from HK. Actually, when I saw this weapon at trade shows, I wanted to recreate it with the same attachments - Aimpoint CompM5b, LM-VTAL and Cobra V2. I modeled it all, but then I realized there might be possible issues with Cobra, so I decided to drop all attachments and leave 2 iron sights. I'll finish CompM5b and LM-VTAL and upload them separately.
Item rating
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HK437 G39 Assault Rifle
$78.00
 
Royalty Free No Ai License 
HK437 G39 Assault Rifle
$78.00
 
Royalty Free No Ai License 
Response 89% in 3.0h
3D Modeling
Low-poly Modeling
UV mapping
Texturing
PBR modeling

3D Model formats

Format limitations
Native
Exchange
  • Autodesk FBX (.fbx) (5 files)5.6 MB
  • OBJ (.obj, .mtl) (5 files)13.5 MB
  • Textures 652 MB
  • PNG (.png) (3 files)652 MB

3D Model details

  • Ready for 3D Printing
  • Animated
  • Rigged
  • VR / AR / Low-poly
  • PBR approved
  • Geometry Polygon mesh
  • Polygons 91,579
  • Vertices 45,878
  • Textures
  • Materials
  • UV Mapping
  • Unwrapped UVs Mixed
  • Plugins used
  • Publish date2025-09-18
  • Model ID#6454761
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