HK416, MR556 Threaded Piston Guide


MR556 & HK416 Gas Piston Guide Bushing

MR556 & HK416 Piston Guide Bushing Threaded For Upper Receiver For All HK 416 & MR556 Firearms.

  • HK MR556
  • HK 416
  • HK M27

Out of stock

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SKU: HKP-02640

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