American National Firearms solid stainless steel guide rod for the Sig Sauer M11-A1, P228, P229, & P250C series pistols. Polished stainless steel. When using a solid rod, there is greater mass at the front of the gun to resist a change of motion when shooting (inertia), which helps to tame recoil and get your sights back on target quickly. With this decrease in muzzle flip, follow up shots can be placed swiftly and with more accuracy, while the moderation of felt recoil translates to a reduction in shooter fatigue. In short, the competitor will shoot more quickly, more accurately and for a longer duration before fatigue and shaking begin to interfere with performance. This guide rod will fit all standard Sig Sauer M11-A1, P228, P229 pistols. It also fits the Sig P250C (Compact) chambered in 9mm, 357SIG, and 40S&W with traditional ""non-captured"" springs. This guide rod will not fit the P250F (Full size), the P250 Sub-compact, or the P250C Compact chambered in .45ACP.