SIG556 from my personal collection.
Bipod, foregrip, original OEM rails, rail rubber bumpers, UTG scope with quick release scope mounts.
Will ship to FFL of your choice for added cost. 
Cost is dependent on destination. 
Check (mailed)
Cash (face to face)
Credit Card (4% Fee)
Rifle cost - $1500.
If local to me in northern Virginia, we can meet and I will conduct the NICS and forms at no added cost. 
The Verdugo - Munitions and Weapons LLC