L42A1 Rifle _38303 (no prefix letter legible in photos) with matching scope 17786. Does it appear on the L42A1 list?

This rifle set was listed for sale in Texas on Gunbroker.com in June 2024. Chest, marked "B COY / 2RRF / 4 of 13" though I do not know if chest is numbered on a label to match this rifle. Chest appears to have complete contents though spotting scope has a separate attached small case for an alternate eyepiece so its model is not known as the Scout Regiment Telescope Mk. II S did not have an alternate eyepiece as far as I know. An IWS night vision scope bag was shown, but its contents, if any, were neither described nor shown. It was listed at USD $12,000 with only 9 photos and very little decription, and not surprisingly, it did not sell.