Turn you M17 CQC or M17 Elite into a HK 416, one of the most sought after weapon styles.
Will not work on new A2 versions
Simply replace the barrel block with our unique barrel block and fi t the handguard, that easy to do.
Choose from 3 sizes:
British made from 100% 6061 T6 Aluminium barrel block and top rail.
Handguards are made from Aluminium.
Barrel block A5 threaded.
And handguard of your choice.