[ARCHIVED THREAD] - oly 9mm upper

Posted: 1/19/2008 7:47:33 PM EDT

Can you use an oly 9mm semi upper on a RR M16---what has to be done to get it to work and will i still be able to use it on my semi lower?

The reason i ask is i have a sbr'd oly 9mm set up and am looking into a RR m16 and would like to know what is involved in switching them back and forth. IE--new bolt etc.

Thanks

Posted: 1/19/2008 8:49:57 PM EDT

[#1]

You need to get the trip surface on the bolt in the proper place, this could mean a second bolt carrier and bolt to swap out, or just build up the original with welded on piece and time it properly.

Posted: 1/20/2008 1:28:43 PM EDT

[#2]

Quoted:
You need to get the trip surface on the bolt in the proper place, this could mean a second bolt carrier and bolt to swap out, or just build up the original with welded on piece and time it properly.

Thank you, that is what i kinda figured. Do you or anyone else know off hand if oly sells 9mm bolt carriers for m16's? I would asume they do. That will probably be the easiest route just switch bolt / bolt carrier between semi and FA lowers.

Thanks

Posted: 1/20/2008 4:45:56 PM EDT

[#3]

Oly does sell FA carriers. If yours is more than 10 years old the ones they make now have a different bolt. Not the breech face profile just the extractor and key. You might want to buy the entire unit, that's what I did. I got it from Triple Break Products.

Posted: 1/20/2008 6:45:00 PM EDT

[#4]

No issues swapping the Oly.

They did come with a full auto carrier. I bought mine from someone and they ground down the carrier out of paranoia.

I bought a new carrier for $45.

[ARCHIVED THREAD] - oly 9mm upper

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[ARCHIVED THREAD] - oly 9mm upper

[ARCHIVED THREAD] - oly 9mm upper