The Z-Parts Ambi Selector for the either Umarex HK416 are drop in dual side fire selectors. It's designed for ambidextrous control and are direct replacements for the original selectors and require no interior modifications!
The Z-Parts Ambi Selector for the either Umarex HK416 are drop in dual side fire selectors. It's designed for ambidextrous control and are direct replacements for the original selectors and require no interior modifications!