i have for sale an SI-Defense AR-10. SI-Defense used to be the name of what is now Falkor Defense. All parts on this rifle are the same as the new Falkor Alpha AR-10 except for the hand guard which is an SI Defense marked Fortis Switch Rail in keymod. The receiver set, lower parts, charging handle, black nitrided BCG, CMC single stage 3.5 lb trigger, stock and barrel are all what you would get if you bought the Falkor Alpha for 4000$. This gun came to me without a barrel and it is used but definitely not abused, not positive on round count but it is in excellent shape only cosmetic blemishes are from where the optic was mounted and wear on the paint where the charging handle slides back. The barrel is a brand new never been fired 18” 1-11 twist .308 DRACOS straight jacket barrel. These barrels are made by Falkor and come with a lifetime warranty sub MOA guarantee.. LIFETIME! $1500 shipped OBO Trades: MP5 clones preferably zenith 9mm SIG MPX 9mm B&T 9mm Benelli M4 High end pistols High end AK If local to Oregon, Kawasaki KLX 110L 1900$ trade value I may be missing something here so shoot me a text at 541-231-6126 if you have any questions.