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Discussion Starter #1
I've heard tell that the G3 barrels were Nitrided. Is this the case, and if so, were the import HK 91 barrels nitrided as well?
 

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H&K Certified Armorer
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They are not nitrided. CHF with immediate heat treat to relieve the stresses from the CHF process.
 

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Discussion Starter #3
Gracias!
 
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