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Reply With QuoteI read in one of the posts on HK pro that NASA shot over 500,000 rounds without replacing the bolt head.
Search using "NASA" and you should find the thread.
Bolt Head replacement
How can I tell if the bolt head is defective or needs to be replaced? How many rounds can a bolt head handle before replacement?
I read in one of the posts on HK pro that NASA shot over 500,000 rounds without replacing the bolt head.
Search using "NASA" and you should find the thread.
What caliber, what model?Originally Posted by Patriot
If there are no visible cracks and the bolt gap is still within spec, the bolt head is good to go.
G3Kurz
The post was titled "Estimated lifespan of MP5 parts ? ". If you jump over to it you will find a list of parts that were replaced. The reported round count was well over 500,000 rounds.
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