Description
The HK MR556 trigger is similar to our SSA Trigger and can be used in both the HK556 and semi-auto HK416’s.
Geissele HK MR556 Trigger Specification
| 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. |
| Adjustable: | No |
| Pin Size: | Mil-Spec |
All weights are approximates-Geissele HK MR556 Trigger








