Bolt parts

Talk about the AR15 style rifles chambered in 450 Bushmaster.

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Bolt parts

Postby Brencade67 » Wed Feb 12, 2020 9:45 am

New to the forum but have been reading it for a few months. A lot of great information on here and I appreciate the help. I have a question. Can a 450 bolt be compatible with a 458 for parts like the extractor, pins, springs, etc.? I only ask because 458 heads seem cheaper and more readily available than for 450 heads. I know the extractor has a more pronounced angle on the 450, but was curious if anyone was using the 458 bolt or even the 7.62x39 extractor. I was gathering parts for various reasons. Thanks
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Re: Bolt parts

Postby Al in Mi » Wed Feb 12, 2020 5:59 pm

Welcome aboard.

I have used Youngs 458 bolts before with no problems and have a couple Leigh 458 bolts to try this spring but not expecting any issues with them either.
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Re: Bolt parts

Postby Brencade67 » Wed Feb 12, 2020 9:07 pm

Thanks! I will give it a try.
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Re: Bolt parts

Postby 303hunter » Tue Feb 18, 2020 8:23 am

I've got a bolt marked 458 in one of my rifles and it works fine.
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Re: Bolt parts

Postby Brencade67 » Thu Feb 20, 2020 8:16 pm

Thanks. I ordered an 458 extractor from Lehigh and new ejector and spring from Tromix. Shot some today. Not FTE or stovepipe.
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