This is a Very Good used rifle.  It has a BLK LBL Bipod.  It has a 16" stainless steel threaded barrel, one piece receiver, folding precision adjustable stock. It comes with 2 magazines.

BLK LBL bipod- Specifically designed to integrate seamlessly with the SIG Cross bolt action rifle, this premium free-floating aluminum handguard boasts a professional anodized finish. It comes equipped with the finest integrated, flush-folding bipod available on the market. With up to 30 degrees of Cant, a tool-less tensioning system, and extendable legs, you can always achieve the perfect setup.
The handguard also features M-LOK slots on both sides and the bottom, providing versatile attachment options for a variety of aftermarket accessories.