In the book "They Were Ready. The 164th Infantry in the Pacific War, 1942 - 1945" there is a statement that on the night of the 24-25 October 1942, Seabees were the last line of defense for the airfield. They were armed with pistols and M1 carbines. I was wondering if anybody has any documented proof that the M1 carbine was issued and in use that early on Guadalcanal. I would think that pistols and M1903 rifles would be more likely weapons in the Seabees hands.