This is a stainless steel guide rod for a Sig Sauer P2340 made out of 304 stainless steel. The rod is made of only the finest stainless steel material to replace the plastic factory rod. Our rods are measured to factory specification and we ensure the finest fit and finish on all of our parts. This is a great upgrade to the guide rod in your Sig P2340. We specialize in all Sig guide rods.