Type 3 lockbar sight question

[SMG6702 Find all posts View Profile Close SMG6702]

Hi all I have a question that I'm sure has been asked before but I'm wondering who uses this sight and if it's worth changing it out. my rifle has the post war style which it seems like most have from what ive been reading online I like that lockbar are the correct sight and matches my barrel and receiver. I have been reading that they don't stay so tight and loosen up so looking for some advice thanks in advance

[TJT Gunnery Sergeant Find all posts View Profile Close TJT]

I have NEVER, in 30-plus years, had a lock bar sight come loose. I have, however, had the new type come loose. My match rifles all have lock bar sights for this reason.
The lock bar sight that was prone to loosening, and sometimes falling off is the type I short pinion. The flush nut sights had a loosening problem as well. The length of the pinion was increased, diameter reduced, and a finer-pitch thread was used in the type II and III sights--problem solved. Also, just so you know, type II and III lock bars are NOT distinguished by round or square ends. It is by the machining, or lack thereof, on the under side of the lock bar. There are, indeed, type II bars with square ends and type III's with round ends.
Jon

[SMG6702 Find all posts View Profile Close SMG6702]

Thanks for your help the place that had them was dupage trading. I think 2 they sell the entire sight with the base but said I can remove and install it into my base I guess I could see what one is better thanks again

[Orlando First Lieutenant Find all posts View Profile Close Orlando]

Never had a problem with either type loosening on their own. The later T105 type IMO is easier to adjust for shooting

[SMG6702 Find all posts View Profile Close SMG6702]

Hi all I just installed the lockbar sights I ordered from dupage trading . Like you guys said they do seem to tighten up very well . The only thing is the color of the knobs are darker than the sight base on my rifle it's more black then the greenish color . Just wanted to know if any of yours are this way .I'm sure you never will match parts when you add them just curious thanks Stephen

[Orlando First Lieutenant Find all posts View Profile Close Orlando]

Sight base that came with sights may not be original to sight knobs and sight cover. Its also not unusual for colors on original rifles to not match, they will vary

[TJT Gunnery Sergeant Find all posts View Profile Close TJT]

They won't match because of differences in the parking solution at the time, when they were park'ed and the base of the parent material. All matching just screams "REPARK" any way, which may, or may not be what you want.. There were millions of them made and if they weren't all done at the same time in the same batch, they ain't gonna' match.
Jon

[SMG6702 Find all posts View Profile Close SMG6702]

Thanks for the response .I was thinking that was probably the reason . they look great I'm glad I put them on thanks again for your input Stephen

[TJT Gunnery Sergeant Find all posts View Profile Close TJT]

Hey Stephen,
You DO know there's an un-written rule--pictures or it doesn't exist-RIGHT???!!!???
Come on BRO-, stop holding out on us. We ALL like gun porn. I'm just sayin'.....
Jon

[RCS Advanced Collector Find all posts View Profile Close RCS]

Here is a photo of a Type 1 lock bar, all you have to do is remove the flush nut (spanner nut) and replace with the lock bar. These are quite expensive and often faked by installing a sleeve into a Type 2 lock bar. Old photo from 2006 showing the Type 1 on a early rebuild, barrel is S-A 10-41

[SMG6702 Find all posts View Profile Close SMG6702]

I was able to find these 2 pictures

[TJT Gunnery Sergeant Find all posts View Profile Close TJT]

Pics of the WHOLE rifle??!!??
Jon

[SMG6702 Find all posts View Profile Close SMG6702]

[TJT Gunnery Sergeant Find all posts View Profile Close TJT]

Nice looking rifle Stephen. That's one to be proud of. Shoot it and ENJOY it.
Jon

[m14brian Major Find all posts View Profile Close m14brian]

That is a really nice looking rifle, thanks for posting up pics!
m14brian