HK MR556 & HK416 Firing Pin - TitaniumGrade 6 weapons grade Titanium manufacture. Made 100% in the USA A must have upgrade to have on hand as the firing pin is one of the most abused components in the HK MR556 & HK 416 weapon system. Get the lightest, strongest firing pin available for your HK firearm. Ideal for serious shooters, ranges, HK collectors, LE/Mil, etc.Fits all:
- HK MR556
- HK 416
- HK MR556 Competition
- HK M27
- HK 416 A5