May 07, 2021 ยท Description: Rival Arms Sig Sauer P365XL Guide Rod Assembly, Tungsten. Featuring a heavy tungsten guide rod, this drop-in-ready Rival Arms guide rod assembly is designed to be used in the Sig P365XL pistol chambered in 9mm. The assembly has a stock spring weight of 17lbs. The heavier tungsten carbide rods reduce felt recoil and muzzle flip to .... "/>Tungsten gun parts