Sorry, Rum made me impatient.
This is from the manual
13. To fit a new fore-end to rifles No. 1:—
(i). Remove from the unserviceable fore-end:—
The dial sight complete with fixing screw and washer (when fitted to No. 1
“A” fore-ends).
The nose cap nut.
The stock bolt plate.
The collar.
The inner band spring washer.
The protector with screw, nut and washer.
(ii) Select the new fore-end to match reasonably with the butt, and examine it
for straightness; assemble the nose-cap with nut and screws, the guard screw
collar and stock bolt plate, and examine the location of the barrel hole in the nose
cap in relation to the barrel groove in the fore-end.
(iii) Place the front handguard on the fore-end, apply its cap to the recess in the
nose-cap, and, if necessary, plane or file the upper surfaces of the fore-end until
the cap fits and the handguard lies evenly on the fore-end.
(iv) Remove the nose-cap and coat the seating surfaces of barrel and body with
lamp black mixed with G.S. oil. Test the seating of the fore-end, and adjust as
necessary, taking care to keep the bottom of the groove level with the bottom of
the barrel hole in the nose-cap, using a straightedge of sufficient length for the
purpose. The fore-end should seat on the base of the body, especially at the front
end for 1½ inches at least, on the barrel at the reinforce, and from half an inch in
rear of the inner band recess to the nose-cap. The guard screw- collar should bear
on the boss of the body; and its outer end should be slightly below the guard
seating (about .01 inch). The fore-end must be clear of the barrel from the front of
the reinforce up to a point half an inch from the inner band recess; it should fit
closely between the sear lugs and the face of the butt socket of the body. The
inner band recess should be of sufficient depth to ensure that the inner band can be drawn down on to
the barrel.
Page 15
(v) When the seatings and clearances are satisfactory, press the fore-end on the barrel and body,
assemble the trigger- guard and screws, and test to see that the barrel is free and that it seats along the
bottom of the groove without undue tension. Test the pull-off for double action and, if unsatisfactory,
adjust as necessary— see paragraph 6. Assemble the nose-cap and screws, test the alignment of the
barrel in the fore-end and the barrel hole in the nose-cap, and, if necessary, adjust the sides of the
groove to avoid influence on the straightness of the barrel.
(vi) When satisfactory, remove the fore-end, and assemble the remaining components, seeing that
the backsight protector is quite clear of the barrel. Lubricate the barrel and body recesses of the foreend,
the groove of the handguards and the barrel and body, with red mineral jelly (at stations abroad,
with the mixture referred to in Section 2). Finally, assemble the fore-end to the rifle, seeing that the
inner band spring is free to act, that the barrel can be sprung down fully at the muzzle against the
tension of the stud and spring, and that the rear handguard does not prevent the backsight slide from
seating on the bed at the lower elevations.
(vii) As accuracy of shooting and sighting may be affected by the new fore-end, the rifle should be
submitted to the O.C., the Company or Squadron, etc., for accuracy test, the foresight to be adjusted as
necessary. (See para. 15.)
(viii) Alterations to be made to No. 1 “B” fore-ends when fitting them to rifles with cut-off (a) or
aperture sight (b) :—
(a) The upward extension, on the right side of the stock, which covers the position of the cut-off
slot in the body: will be cut away, and an angular recess will be cut to half the depth of the cutoff
lug recess, to clear the cut-off joint when the cut-off is opened.
(b) The aperture sight will be replaced by the washer, spring, bolt locking, but should this
component not be available, the pillar of the aperture sight will be filed off at the base and the base
disc used as a washer under the spring.