• Geissele HK MR 556 Trigger
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Geissele Automatics

Geissele HK MR 556 Trigger

$475.00
$475.00
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Why buy from B&B

Because you work directly with a family-run business that cares about getting it right.

B&B Firearms is built on faith, family, service, and real product knowledge. When you buy here, you are not supporting a giant corporation — you are working with a veteran-owned family business that values honesty, guidance, and doing right by people.

SSA-style two-stage trigger for the HK MR556 and semi-auto HK416.

  • For HK MR556 / semi-auto HK416
  • SSA-style two-stage

Specifications

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

Notes

Please note, the HK MR 556 is designed to work with a mil spec 90-degree safety. Compatibility with short throw safeties in the A4 series is unknown at this time.

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.