The M1A1 was designed in Might 1942 for paratrooper units, and arrived with a folding stock, but was or else identical to a standard M1.[116] M1A1 carbines were created by Inland, a division of Basic Motors and at first came with the early "L" nonadjustable sight and barrel band devoid of bayonet lug.Their AP5-clone is built from heat-handled metal