Description

The SilencerCo AC859 Threaded Barrel is the ultimate performance upgrade for the Sig Sauer P226. Specifically engineered for 9mm configurations, this match-grade barrel provides the precision threading necessary to run your favorite suppressor or compensator without sacrificing the legendary reliability of the P226 platform.

Match-Grade Precision & Performance

• Superior Accuracy: Precision-machined to much tighter tolerances than factory barrels, providing improved grouping and consistent point-of-impact.
• Standard 1/2×28 Threading: Features the most common 9mm thread pitch, ensuring seamless compatibility with the vast majority of suppressors (like the Omega 9K or Osprey 2.0) and muzzle devices.
• Optimized Rifling: Built with a 1:10″ Right-Hand twist rate, designed to stabilize everything from standard 115gr target loads to heavy 147gr or 158gr subsonic rounds.

Elite Materials & Finish

• 416R Stainless Steel: Constructed from high-tensile 416R stainless steel, a material prized by competitive shooters for its ability to maintain accuracy even as the barrel heats up during rapid fire.
• Black Nitride Coating: Finished with a specialized Black Salt Bath Nitride process. This doesn’t just look great; it increases surface hardness and provides extreme resistance to corrosion and friction wear.
• Drop-In Ready: Designed as a true drop-in replacement for the Sig P226 9mm, requiring no permanent modifications or gunsmithing for most pistols.

Specifications

• Model Number: AC859
• UPC: 817272010831
• Fits: Sig Sauer P226 (9mm models)
• Thread Pitch: 1/2×28
• Barrel Length: 4.9″
• Material: 416R Stainless Steel
• Finish: Black Nitride