[ARCHIVED THREAD] - Oly .45 ACP upper question

Posted: 4/16/2005 9:47:47 PM EDT

I was wondering if the Oly .45 Upper uses the same sort of ejector spring as the 9mm kit. The reciever is drilled with a pin and it holds the ejector? I was thinking of building a .45 ACP upper because you can get the bolt and barrel from Oly but it looks like I would also need to get a reciever or somehow drill the holes for the cross pin?

Thanks for any info!

Neal in AZ

Posted: 4/17/2005 5:30:23 AM EDT

[#1]

The ejectors are the same no matter what caliber.

Posted: 4/17/2005 7:36:46 PM EDT

[#2]

It's no big deal to drill the holes. You can do them with a hand drill if you are careful. You will need to buy the ejector spring & pin tho.

Posted: 4/18/2005 8:30:17 PM EDT

[#3]

USAMARK, I thought about that also. My only concern is getting them in the right place. Any tips?

Neal in AZ

Posted: 4/18/2005 9:57:48 PM EDT

[#4]

IM sent

Posted: 4/19/2005 4:21:33 AM EDT

[#5]

If you have a buddy with an Olympic kit, measure that. Since the ejector is just a spring, it doesn't have to be EXACTLY right. A decent dial caliper will be just fine. A drill press with a vise would be great to drill thru just so the cross pin is straight. That's how I did one many moons ago and it's still running today.

Posted: 4/20/2005 11:52:44 AM EDT

[#6]

Somebody posted the measurements here a while back with a drawing. Maybe somebody can dig that up.

Posted: 4/20/2005 4:01:59 PM EDT

[#7]

Courtesy of Hahn Precision

[ARCHIVED THREAD] - Oly .45 ACP upper question

AR Sponsor

Warning

Confirm Action

[ARCHIVED THREAD] - Oly .45 ACP upper question

[ARCHIVED THREAD] - Oly .45 ACP upper question