Sig's Pistols are engineered to perform anywhere, at any time, and under any circumstance. They boast unique, advanced features that stand out among the rest. The Sig Sauer P229 has been trusted by federal law enforcement professionals for decades. It has a aluminum alloy frame with a hard coat anodized finish and a stainless steel slide with a nitron finish. The Compact M11-A1 model performs like no other 9mm available. Its internal parts and controls are phosphated for extreme corrosion resistance and reduced friction while the barrel has a nitron finish. The P229 M11-A1 Compact also has vertical front strap serrations and SigLite night sights.