Game-ready G3SG1. Main weapon is textured in PBR and ready for modern game engines. Here is a breakdown of the materials:

Animations - Draw, Idle, Reload, Fire, Pump, Jam, Reference

UVs - The model uses asymmetrical uvs to allow for variations on each side.

R870:
Albedo - 2k
Normal - 2k (Y+)
Specular - 2k
Gloss - 2k (Invert for Rougness)

Arms:
Band - 1k*2k (Albedo, Normal, Specular, Gloss)
Hands - 2k*4k (Albedo, Normal, Specular, Gloss)
Watch - 2k (Albedo, Normal, Specular, Gloss)

Garmin Foretex 301:
Albedo - 2k*1k (Plain version included)
Specular - 2k*1k
Normal - 2k*1k