The Griffin Armament DUAL-LOK system is comprised from two components, the DUAL-LOK Mount or equipped suppressor and the DUAL-LOK muzzle device (of your choice). This page is for the DUAL-LOK 1.2875x24 Mount Interface. A quality QD system should be accurate, robust, reliable, require minimal training, and be free of wear prone metal on metal teeth or ratchets, thereby guaranteeing a longer trouble free service life with minimal maintenance needed. Griffin's DUAL-LOK QD mounting system was designed around these objectives. What makes this mounting system unique? It is a combination of desirable mechanical features and performance characteristics in a lightweight, compact system. DUAL-LOK combines a precision, sealing, and alignment taper interface with a stub ACME thread, and provides ease of secure attachment. A robust wave spring provides a reliable and positive heat-resistant spring action to the redundant locking collar (second locking feature). The locking collar is semi p...