Hammer Spring For Burst Trigger Pack


The HK German factory intermediate poundage “satin” gray hammer spring is found in all 9mm, 40/10, and .556/223 burst trigger packs and has proven to be the most reliable and longest-lasting spring for burst trigger packs and trigger packs in general.

Works in ALL burst packs and any Navy or SEF style trigger packs in the following calibers:

  • 9mm
  • 40/10
  • 556/223

Please note: In some cases, the burst hammer spring can be used in .308 trigger packs but may promote light firing pin strikes with hard primers.

In stock

SKU: HKP-01111

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