Description
The Shop M18 is a precision-machined, aftermarket slide assembly designed for the SIG Sauer P320 platform. Manufactured from 17-4 stainless steel and finished with a durable nitride coating, it provides a robust and corrosion-resistant upgrade. This slide is engineered for direct compatibility with standard P320 FCUs and barrels, offering a streamlined path to a custom build with enhanced aesthetics and reliable performance.
Key Features
- CNC-machined from solid 17-4 stainless steel billet
- Hardened nitride finish for wear and corrosion resistance
- Pre-milled for optics with an RMR/Holosun 507C footprint
- Front and rear slide serrations for positive manipulation
- Designed for use with OEM P320 barrels and recoil assemblies
Specifications
| Caliber / Type | 9mm / Pistol Slide |
|---|---|
| Material | 17-4 Stainless Steel |
| Finish | Nitride |
| Compatibility | SIG P320 Compact/M18 (3.9″ Barrel) |
| Weight | Approx. 12.8 oz |
The 17-4 stainless steel construction is heat-treated to H900 condition, providing a high strength-to-weight ratio essential for repeated cycling. The nitride finish penetrates the metal surface, creating an extremely hard layer that reduces friction on the rails. This combination ensures reliable function with 9mm pressures, offering a durable, low-maintenance component for duty, competition, or defensive use.




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