Geissele Automatics
The HK MR 556 trigger is similar to our SSA Trigger and can be used in both the HK 556 and semi-auto HK 416's. Note: not compatible with the the MK4.
05-220-Geissele
854014005168
05-220
1st Stage: 2.75 - 3.0 lbs.
2nd Stage: 1.5 - 1.75 lbs.
HK MR556
Ambidextrous
New
Triggers
Yes
3-3.9 lbs