no.5 micro sight on a no.4?

[chainsaw]

Gentlemen,in my net search for basic info on my no.4 mk.1,I saw a pic of a no.5 with a micrometer sight.would that micro sight fit on a no.4?

Information

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[gsimmons]

They are different. The no 5 sight is graduated to 800 yds., the no 4's is graduated to 1300 yds. It will fit bit it's not right.

[chainsaw]

Ok.thanks.

[gsimmons]

I think the MkI sight for the no4 is actually easier to find and cheaper than a no5 sight as well.

[chainsaw]

The sight my no.4 has says mkII.does that mean it is from a mk2 rifle?It does`nt look factory.It looks newer.

[Beerhunter]

They are different. The no 5 sight is graduated to 800 yds., the no 4's is graduated to 1300 yds. It will fit bit it's not right.

Not only that but because both sights are graduated on the ballistic drop of a MK.VII cartridge, due to the different sight radius of the two rifles it will not set correctly.

[Peter Laidler]

It is easy to be misdirected about the No4 backsight Chainsaw. The ACTUAL Mk2 backsight for the No4 is the simple two-aperture flip-over backsight. The Mk3 backsight assembly is the FIRST of the two variations of the simplified, pressed and folded leaf backsights (the second variation is called the Mk4.....)

Where the confusion lies is that the actual LEAF/flip-up part of the Mk3 backsight is in fact the Mk2 LEAF. The Mk1 leaf being part of the Mk1 backsight. And yep....., the Mk4 backsight assembly has a Mk3 LEAF part!

I could go on and on about the UK Military nomenclature and numbering system but to be really honest, I've been an Armourer for just on 50 years and it STILL confuses me!

Anyway, to cut to the quick, just obtain the correct 2 -13 Mk1 backsight for your rifle. Don't use the similar 2 - 8 marked one from a No5 rifle as beery says above, the graduations are not compatible

[chainsaw]

Ok,thanks guys.

[ssj]

There is a whole array of different sights and very confusing.

This is a mk1 sight,

Google Image Result for http://www.ds-solutions.co.uk/images/tn%2520No5%2520JC%2520Rear%2520Sights%25201.jpg

The little thumb wheel gives 1/2 MOA, it was fitted to early no4 mk1s early in the war and to no4 mk2s after the war. It should be cheap to buy, $50US

**edited** oops what Ive shown you is a no5 sight I think.

Here you go n04 sights,

enfield no4 mk1 rear sight - Google Search

The reason there were different sights was the above one was hard and hence slow to make, so they swapped to easier to make ones to speed up production during the war. After teh war they went back to them.

Then there are competition target shooting type sights, if you want to hunt I would think the mk1 above would suit best. Its what I have for service rifle. If you want to target shoot then there are sights with windage but they cost typically 5 to 6 times as much.

Im currently looking for one of these so I can shoot in long rnage competiton but they seem to be priced around $200~300US or more,

PH5c - Google Search

[chainsaw]

Thanks ssj,for all your expertise.it is appreciated.I like that there is so much to learn about enfields,it keeps it interesting.