GERMAN G1 ....MUZZLE ATTACHMENT SET........METRIC ...1- NEW ..FLASH HIDER.....JUST OUT OF THE WRAPPER...........1- LIKE NEW BLANK ATTACHMENT.....1- LIKE NEW GRENADE LAUNCHING ATTACHMENT.......3 PC. SET................................................................................................................................. THESE HAVE A QUICK CONNECT FEATURE AND TWIST ONTO THE G1 LUGGED BARREL.... .........................................................................................................................................PLEASE NOTE....THEY DO- NOT- HAVE........... THE STANDARD METRIC 9/16 X 24 LH THREADED INTO THEM.............LAST SET HERE..................................................................................................................................The G1 being the Belgian made FAL's sold to Germany in the 1950's. These fit the special barrel lug on the G1 type Fn Fal rifles. These are constructed from steel with a matte blue/black finish, some are serial numbered and some are not, earlier style have the mounting retention spring...... for use with the the 22mm standard rifle grenades of the time. GERMAN G1 FLASH HIDER,BLANK,GRENADE, SET. THESE HAVE A QUICK CONNECT FEATURE AND TWIST ONTO THE BARREL LUG AND DO- NOT- HAVE- THE STANDARD METRIC 9/16 X 24 LH THREAD. THESE ARE MUST HAVE FOR COLLECTORS.....GERMAN G1 FLASH HIDER & GRENADE, SET. THESE HAVE A QUICK CONNECT FEATURE AND TWIST ONTO THE BARREL LUG AND DO- NOT- HAVE- THE STANDARD METRIC 9/16 X 24 LH THREAD. THESE ARE MUST HAVE FOR COLLECTORS.....