Centennial Defense Systems MOD4 Stainless Steel Guide Rod Assembly for Smith & Wesson SD9 & SD40 4in Barrel Black - Coated Rod Button Head Allen Screw

Centennial Defense Systems MOD4 Stainless Steel Guide Rod Assembly for Smith & Wesson SD9 & SD40 4in Barrel Black - Coated Rod Button Head Allen Screw. This eliminates guide rod flex and ensures it will not chip crack or break like plastic guide rods providing a lifetime of reliable service. Flat wound recoil springs are manufactured of certified aerospace spec materials heat treated shot peened and stress relieved to maximize durability. The screw tip is easily removed to allow the user to change spring weights and fine tune the recoil spring to the ammunition of choice. Like all Centennial Defense Systems products our guide rods are designed manufactured finished and assembled in the USA. Finishes Available: Black Blue Burnt Bronze Glock Gray Glock Tan Hi-Viz Orange Nickel OD Green Pink Purple Red Satin Aluminum TiN (Gold) White Zombie Green Fits S&W Models with 4 Barrels (C E G GP P V&VE Series) 9mm .40S&W .357SIG Guide Rod Versions: MOD1 = Allen Screw MOD2 = Flat Face Screw MOD3 = Torx Screw MOD4 = Button Head Allen Screw MOD5 = Flat Face Button Head Screw Factory Recoil Spring Weight S&W Models SD9 and SD40 Factory Spring Weight is 18lbs Alternate Spring Weight 11 - 16 LB Recoil Springs Are for Reduced Power Loads 19 - 24 LB Recoil Springs Are for Heavy Ammunition Loads +p and +p+ Note: Only the screw will have the selected finish with the exception of Black and TiN (Gold) which can be applied to the rod as well. Specifications for Centennial Defense Systems MOD4 Stainless Steel Guide Rod Assembly for Smith & Wesson SD9 & SD40 4in Barrel w/Button Head Allen Screw: Manufacturer: Centennial Defense Systems Fabric/Material: Stainless Steel Gun Make: Smith & Wesson Gun Model: Smith & Wesson SD9 VE 4in Package Contents: Centennial Defense Systems MOD4 Stainless Steel Guide Rod Assembly for Smith & Wesson SD9 & SD40 4in Barrel w/Button Head Allen Screw Centennial Defense Systems 12141: MOD4 Stainless Steel Guide Rod Assembly for Smith & Wesson SD9 & SD40 4in Barrel Black - Coated Rod Button Head Allen Screw 20lb Spring