Product Info for Geissele HK MR 5.56 Rifle Trigger
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. 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.
Specifications for Geissele HK MR 5.56 Rifle Trigger:
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