This listing is for USED firearm repair parts. Only the gun repair parts shown in the photos are included with this listing. This USED complete lower parts kit was removed from a firearm and has not been cleaned, inspected, or tested. This listing includes only the pictured complete lower parts kit shown. This listing does not include any parts not shown in the photos. These USED repair parts are intended only for replacing broken or missing parts from a similar firearm. Some parts may require fitting, adjustment, or additional work before use. All firearm parts should be installed by a qualified or competent gunsmith. After installation, the firearm must be properly tested to verify safe and correct operation before any use. Compatibility information is provided only as general guidance and for search reference. Compatibility is not guaranteed. Make: Heckler & Koch / HK. Barrel Length: 3.75. Compatibility: Heckler & Koch HK USP Compact 45 ACP pistols; compatibility is general guidance only and is not guaranteed. Included Parts: Complete lower parts kit shown in photos only. Serial number range 29-0205xx. Parts are used take-off firearm repair parts and have not been cleaned, inspected, or tested. Listing includes only the parts shown.