For use on all HK German .45 cal threaded barrels, including the HK full-size & HK compact models. It is made of heat-treated ordnance-grade steel, heat-treated and finished in the melonite finish to add the best corrosion and abrasion resistance possible.

Compatible With:

• HK45, HK45 Tactical
• HK45C, HK45C Tactical
• USP 45, USP 45T
• USP 45C, HK45CT
• USP 45 Tactical Models
• Other non-HK .45 cal thread barrels threaded 16 X 1 left-hand thread
• Many other applications and firearms

Please Note: The pictures shown are not the exact product available, as some cosmetic changes have been made, but it is a true 4-prong design. We have added several upgrades to the design of a factory HK German .45 cal O-ring to each flash hider to aid in "timing" the flash hider once installed (to your desired position) and to help aid an enhanced fit for each barrel.