Description
The Sig Standard Match-Grade, drop-in performance upgrade barrel is CNC machined form 4340H steel billet which results in superior corrosion resistance and durability. It has a PVD coating that creates a durable barrier against wear and a target-crowned muzzle.
- Model : Standard



![[P55340] Starting Key (2-Pack)](https://www.greatdiyhardware.com/wp-content/uploads/2026/07/p55340-starting-key-2-pack.webp)
