This mod adds the TAR-21 as a standalone assault rifle. Starting out as a bog-standard assault rifle, you can turn it into either a semi-competent high concealment rifle or into a full fledged 160-damage sniper rifle.
List of available attachments:
All vanilla muzzle attachments and sights.
Most of vanilla gadgets (excluding magnifiers because the rail is just too short).
Vanilla AR-15 magazines.
Compact and Custom Sniper barrels.
Sniper Conversion Kit.
Ranger Magazine
ARES and Prometheus sights
Three weapon paints if you use the Weapon Painter mod.
Issues:
There is a minor clipping that is noticeable all the time. Don't want to bother with it, I am finally happy with the scale of the weapon.
I added animations to the bolt and charging handle, but the VHS hand movements don't really fit them. Don't know how to animate, don't want to re-animate this particular weapon.