This OSS spare barrel is a drop-in part for full-size HK USP45 and USP45 Tactical pistols and accepts threaded muzzle attachments. It does not fit the USP45 Expert, the compact models or the HK45.
- Type : Pistol Barrel
- Caliber : 45 ACP
- Fits : HK USP45 Full Size/Tactical
- Color : Black
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