No5 MkI Rifle
Images

The first indication that a Lee-Enfield is a
No5 MkI is it’s electro penciled nomenclature
etched onto the left side receiver wall along with the factory that produced
it, the date produced and it’s serial number.

Typical electro pencil markings on a No5 MkI
The No5 incorporated a number of lightening
cuts to reduce it’s over all weight. These cuts
included a hollowed out bolt handle, scallops or flutes cut from the
barrel’s knox form, and a couple of areas milled
down on the receiver. The following pictures illustrate these modifications.

From
this picture, the tell tale gap between the rear sight and the receiver
combined with the lightened bolt handle is a clear indication that it is a No5
MkI.
Again, note the gap between
receiver and micrometer sight. For comparison, pictured below on the left is a
No5 MkI and on the right a No4 Mk2.


No5 MkI
No4
MkI*
Removing the handguard and
forestock will reveal the lightening cuts to the receiver and barrel. Illustrated
below for comparison is a No5 barreled receiver followed by a No4 barreled
receiver pointing out the differences.

No5 MkI barreled receiver.

No4 MkI barreled receiver
Another obvious modification
made to the No5 MkI rifle was the rear sight’s elevation adjustment
stopped at 800 yards unlike the No4 rifle which allowed for 1300 yards.


A
No5 rifle micrometer sight graduated from 200 to 800 yards.
A No4 micrometer sight graduated from 200 to 1300 yards.
The No5 MkI was also stocked
in wood that was made specifically for it, they did not use cut down No4 rifle fore-ends
or handguards. This is handy information if you are looking at buying a No5
rifle given the premium that they command on the market, for top dollar a No5
MkI should be original and not a home or commercial rebuild. The following
pictures show for comparison a genuine No5 MkI stock and handguard and a well
done fake made from No4 rifle lumber.

My first observations when looking at these two No5 rifles
was the length of the fore-ends and the rear sling swivel cut outs of the
butts, the differences led me to investigate further.

In this image note the impressions left by the trigger
guards. The top fore-end shows that the correct triggerguard has been installed
(a lightened hourglass style guard), while the bottom
fore-end show that a standard No4 rifle trigger guard has been installed.

The handguards were a different length.

Closer inspection of the handguards show a difference
to the inletting for the stock band.
Notice the handguard on the left, the inletting is shallow and has been chiseled
out. The handguard on the right has a deep inlet and is far more even.


The butts show a difference
similar to the handguards. The one on the left has shallow inletting for the
sling swivel, it also has a very pointed toe at the
bottom where it meets the buttplate. The right side picture shows a butt that
has a more pronounced inlet and a more sloping toe.
There were several other
differences, all do to craftsmanship in the wood, but they don’t show up well
in pictures. So in the end, one No5 was in original condition and the other
wasn’t. One can be considered a collector piece and the other a fine
example of a No5 but just a shooter, their values should reflect this
difference. There is no right or wrong, but the buyer should know what he/she
is buying.
Going back to the two top
pictures of this segment, the bottom rifle is the original. The top one is a
No5 MkI barreled receiver but has been stocked in a cut down No4 fore-end and
handguard arrangement with an aftermarket butt and buttplate.
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