20 mm. A.A. Gun (Ordnance Pamphlet No. 911)
Department of the Navy | 1943 | ISBN: N/A | English | 255 pages | PDF | 20.4 MB
Department of the Navy | 1943 | ISBN: N/A | English | 255 pages | PDF | 20.4 MB
Decription: 20 mm. Machine Gun Mechanisms Marks 2 and 4; 20 mm. Gun Barrels Marks 2, 3, 4 and 4 mod. 1; 20 mm. Sights Marks 2, 4, 4 mod. 1, and 5; 20 mm. Magazines Marks 2 and 4; 20 mm. Shoulder Rests Marks 2, 4, 5 and 5 mod. 1.