This attachment is not a replica but an artistic representation of it.
Originally created with 3ds Max 2012 and xNormal. Model were rendered in Unreal Engine 4.11 and Marmoset.
Ready for use in game or realtime presentation.
Model have PBR materials (metalness workflow).
Ready for use with Unreal Engine 4. Product have appropriate archive (***_UE4.rar) which could be used directly in Unreal Engine - just unpack it into your Unreal_Project/Content folder.
In Unreal Engine use item from folder 'Props\BP_* - it has basic unreal blueprint setup. You can also use Static mesh item from folder 'Meshes'.
You can use this model in Unity to achieve similar render results (maps included into archives) but you will need to repack maps according to Unity Metalness shader and invert green channel of normal map manualy.
Model could be placed on barrel muzzle brake (were tested on ACR rifle model, not included).