Manticore Arms Masada Stainless Guide Rod Silver Small. It comes with a custom wound 18 pound flat wound spring pre-installed which reduces felt recoil and muzzle flip. All Rod components and hardware are stainless steel and the part is a drop in replacement for the OEM plastic guide rod. The Masada Stainless Guide Rod will ONLY fit the Masada it WILL NOT FIT the Masada Slim. The two pistols use different guide rod designs. Specifications for Manticore Arms Masada Stainless Guide Rod: Manufacturer: Manticore Arms Color: Silver Finish: Stainless Fabric/Material: Stainless Steel Gun Make: Israel Weapon Industries (IWI) Gun Model: IWI Masada Weight: 0.7 oz Package Contents: Manticore Arms Masada Stainless Guide Rod What firearm models does the manufacturer say Manticore Arms Masada Stainless Guide Rod is compatible with? The manufacturer suggests that Manticore Arms Masada Stainless Guide Rod is compatible with IWI MasadaManticore Arms MA-29300: Masada Stainless Guide Rod Silver Small