Just a small replacement using existing vanilla meshes.
Fully compatible with retextures (The images provided were taken with Millenia/Arenovalis retexture mod installed). But it will not be compatible with any mod which edits the service rifle in any way, that includes WMX and WME (You can still place this after those mods).

List of changes:
-30 rounds magazine
-Automatic fire (8 shots per second)
-Damage 17 (Before 18)
-Slightly less accurate
-Value 840 (Before 540)
-Less zoom and range
-Upgraded springs mod increases 15% the rate of fire (Before 30%)