Get deals on parts and accessories for your Sig P365. Shop online for holsters, barrels, magazines, and much more at Bulk Cheap Ammo. The Sig P365 Nitron micro-compact 9mm Luger Handgun features an optimized grip design and comes with XRAY3 sights for precise aim in all light conditions. The Sig P365 - 9mm is the perfect handgun for concealed carry every day of the year.