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  #1  
Old 09-21-2019, 06:59 PM
AustinWiseGuy AustinWiseGuy is offline
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Update on the AO

So I got the AO back from Kahr and did a write up on the excellent CS experience. One thing from that visit (which was to replace the sites and plunger tube assembly) was the discovery that the barrel bushing was cracked and replaced.

I took the gun to my local range to check it out and itís running pretty well but when I took it home to strip and clean it, Iíll be darned if the bushing is so dang tight that my wrench wonít even hardly turn it. I did a search on the site and some folks advocate to just shoot the snot out of it and maybe after 500-1000 rounds itíll loosen up enough to clean. Others Iíve read say hose it down with CLP and let it drain and just wipe it off and take it out again.

Any other comments or suggestions would be appreciated. Iím kind of liking the shoot the snot out of it suggestions. Itís a good excuse to get out of the house!
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  #2  
Old 09-30-2019, 12:37 AM
1911crazy 1911crazy is offline
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I’m new to working on my 1911’s.

Accuracy is in the bushing fit. I gather the bushing is tight in the slide? How’s the fit when the barrel hinges down to feed the next round and when it’s in full battery is there and barrel spring?

I fitted the NM barrel bushing on my norinco project 1911 so the wrench is needed for that last 1/8 turn into lock up in the slide. Before I fitted the new bushing the orginal bushing was very loose in the slide. It was more loose than the bushing to barrel fit.
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Old 09-30-2019, 11:01 AM
AustinWiseGuy AustinWiseGuy is offline
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I'm pretty conservative in what I chose to do myself on mine as well. The bushing fit is very tight in the slide, not the barrel as much. The slide moves against the barrel smoothly. I don't detect any barrel movement within the bushing. The bushing is locked tight in the slide to the extent that my nylon wrench strains to keep hold of it and I can only turn it maybe 20 degrees.

As far as the operation, the AO accurately and consistently shoots well with only 2 misfeeds in 100 rounds, and those I think are related to 2 suspect older magazines. The accuracy obviously not as precise as my Colt Comptetition or Harrison Design Springfield but for a $300 gun, I'm about 2" toward 4 o'clock off dead center at 15-21'.
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  #4  
Old 09-30-2019, 01:00 PM
Ranger41 Ranger41 is offline
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The bushing in my Baer TRS is the same. I retract the slide about an inch and the bushing will turn easily with the wrench.
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  #5  
Old 09-30-2019, 03:05 PM
AustinWiseGuy AustinWiseGuy is offline
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Thx Ranger

I retracted the slide about an inch and the bushing is still as tight as ever.
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  #6  
Old 10-01-2019, 07:45 AM
Ranger41 Ranger41 is offline
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In your case it sounds like the tightness is just in the bushing to slide fit. Shooting it a lot may not change things. You can lap the fit to get the bushing easier to turn if desired.
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Old 10-28-2019, 11:18 PM
1911crazy 1911crazy is offline
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I used the simi chrome polish to lap in my nm barrel bushing on my norinco. Itís a very fine polishing compound.
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  #8  
Old 10-29-2019, 01:49 PM
AustinWiseGuy AustinWiseGuy is offline
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Quote:
Originally Posted by 1911crazy View Post
I used the simi chrome polish to lap in my nm barrel bushing on my norinco. Itís a very fine polishing compound.
Thanks. I'll try that out as soon as I can get the durned thing out. I'm currently just shooting it when I can. At the moment, I can't turn the lug much more than an eighth of a turn in either direction.
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