Guns20 mm AN/M2 (Hispano)20 mm AN/M2 (Hispano)20 mm AN/M2 (Hispano)Caliber20 mmService193119321933193419351936193719381939194019411942194319441945United States · Pacific≈ 9 Aug 1942 – Aug 1945United States · Atlantic14 Aug 1942 – 14 Aug 1942United States · Western Europe≈ 2 Oct 1942 – May 1945United States · North Africa≈ 11 Nov 1942 – May 1943United States · Balkans10 Jun 1944 – 10 Jun 1944United States · Southeast Asia≈ 5 Jun 1944 – 14 Apr 1945Aircraft 9193119321933193419351936193719381939194019411942194319441945P-38E210≈ 9 Aug 1942 – Aug 1943P-38F52714 Aug 1942 – 14 Aug 1942≈ 2 Oct 1942 – Nov 1942≈ 11 Nov 1942 – May 1943Jun 1943 – Jun 1943P-38G1,082≈ Feb 1943 – 18 Apr 1943P-38H≈ 15 Oct 1943 – Mar 1944P-38J2,970≈ Mar 1944 – Sep 194410 Jun 1944 – 10 Jun 1944P-38L3,923≈ Jun 1944 – May 1945≈ Jul 1944 – Aug 1945B-292,513P-38MP-7059