The Type 1 lock bar

[RCS]

The Type 1 lock bar was a replacement for the early "flush nut" on the windage knob, being easier to do adjustments and lock. Only the same problem continued as with the flush nut - the lock bar could become loose and fall off ! This Type 1 came into service use in early 1942 but by 1943, the Type 2 lock bar replaced it. Winchester never used the Type 1 lock bar.

Original Type 1 lock bar rear sights are quite expensive now and fakers have made examples by altering the Type 2 lock bar.

I have two rifles, a early rebuild with a late '41 barrel and a June '42 rifle both with the Type 1 lock barAttachment 100078Attachment 100079Attachment 100080

Information

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[Bob Seijas]

The long pinion was first used on December 28, 1942 on a rifle in the 1.09 million range.

[browningautorifle]

Yes, I thought the solution was the long pinion, and that was staked to the type two lock bar? The first one could unscrew completely and get lost. Didn't know he flush nut could also unscrew and fall off, never had any trouble with mine over the years...good thing...

[RCS]

The flush nut on my original late 1941 rifle always worked without any problems but in service use they sometimes became too loose and fell out. Extra flush nuts have (on
rare occasion) have been found imbedded inside the stock) The combination tool was used to lock or unlock the flush nut

Interesting that Winchester continued manufacture of their rifles with the "flush" nut until 1943, these of course were changed out in service

[browningautorifle]

The combination tool was used to lock or unlock the flush nut

That's right, I had the original tool and remember the forked end now...only applied it to see but never used it.

[Bob Seijas]

I've told this story before but it's interesting: when I first talked my way into the Numrich parts warehouse one of the bins I looked in was sight pinions. I took two of the early short ones, but didn't find any numbered ones. However, the bottom of the bin was covered with loose flush nuts, must have been 50 of them. I took three and left the rest. When it was time to pay, they had no idea what to charge for them, so said "Oh, just take them, no charge."

[RCS]

Before the flush nut was discontinued, there was a late type flush nut with a flat face (sometimes called the 1942 flush nut). My friend
Ed Byrns had collected data on original rifles that had been found with this late flush nut. If I recall most were in the 500K serial range

[Bob Seijas]

I always wondered why all the LL rifles from the original lot had flush nuts, despite being made well after the lock bar was introduced in September 1941. I don't recall ever seeing a known LL with a bar.

[EdG]

The long pinion was first used on December 28, 1942 on a rifle in the 1.09 million range.

bob seijas,
Great info - "The long pinion was first used on December 28, 1942 on a rifle in the 1.09 million range."

Bob, where was this info found?
Is it from reported observations or from written documentation from an official source?

Thanks.

[Bob Seijas]

A long time ago Scott Duff, Jeff Carstens, and I bought the notebook of Walter Campbell, the foreman of Assembly at SA. He kept detailed notes in pencil, sometimes you can find gems like that. I started writing a book on it but ran out of ambition