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ProMag SMIA20 Standard 32rd 9mm Luger Fits S&W SD Blued Steel
January 15, 2026Sig Sauer 8900566 P320 9mm Luger 5.50″ Threaded Black Nitron Fits Sig P320
$219.05
Sig Sauer 8900566 P320 9mm Luger 5.50″ Threaded Black Nitron Fits Sig P320
5 in stock
SKU: TSW|153679
Category: Handgun Barrels
Replacement threaded barrel for SIG SAUER P320 Full-size with a loaded chamber indicator, chambered in 9mm. 5.5″ long. SIG SAUER factory replacement pistol barrels are specially heat-treated for toughness and durability. Thread configuration: 1/2-28 RH. **PLEASE NOTE** This barrel is NOT compatible with the P320 X-FIVE slide.
| UPC | 798681649990 |
|---|---|
| Manufacturer | Sig Sauer |
| Manufacturer Part Number | 8900566 |
| Length | 5.50" |
| Model | P320 |
| Barrel Length | 5.5'' |
| Style | Threaded |


