But, wait! There's MORE! on the "Rifle, Intermediate".

The "trials production rear-sight aperture, mounted on its specially made charger guide and slide, can be rotated in much the same way as the "National Match" aperture for the M-14. The "offset" is about 15 thou.

The earliest drawing I have seen for the "Intermediate", does not even refer to it by that name; instead, describing it as "Proposed Amendment to Rifle, No.1 Mk lll* For Jungle Warfare".

This "proposal" drawing shows a COMPLETELY different rear sight: It resembles a two-leaf "express" rifle sight mounted in a large, square-sectioned notch milled into the top of the Knox Form.The ALTERNATIVE was a 2-position aperture, grafted onto an "extra", very square-looking “bridge”, bolted onto the body, about two inches BEHIND the charger guide.

The plunger and spring "hidden" under the nosecap were also deleted.

Barrel length appeared to be about 18".

Reference is: SAID. 1317F

Anyone ever seen a "live" one, or did these ideas only ever exist on paper?