H&K HK Mark 23 Thread Protector

New factory HK Mark 23 SOCOM thread protector

This is the only thread protector that HK offers that will fit the HK Mark 23 Pistol. This is a hard-to-find item and a must-have for all MK23 Owners.

Compatible with:

• All H&K Mark 23/ SOCOM barrels threaded 16mm x 1 right hand twist

Please note: That this will fit the Mark 23 pistol and NOT the USP 45 and HK45 pistols. They use a different thread protector found in the other HK 45 pistol parts sections.