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.
Type: 2 Stage
1st Stage Weight: 2.75 – 3.0 lbs.
2nd Stage Weight: 1.5 – 1.75 lbs.
Total Pull Weight: 4.25 – 4.75 lbs.
Recommended Use: Law Enforcement, Home Defense, Hunting
Pin Size: Mil-Spec
Weapon Platform: HK 416/MR556
Intended Function: Military, Law Enforcement, Hunting
Trigger Bow Type: M4 Curved
Notes After installing the MR 556 trigger you must cock the hammer in order to engage the safety unlike the HK trigger system where you can place the selector on Safe with the hammer forward.
Size Standard Mil-Spec Pin