Combat Sport Supply checks the M1A1 Thompson AEG if it is worth the money, especially for World War II airsofters. The Thompson M1A1 has been faithfully recreated by King Arms/Cyma. Originally designed as a civilian weapon, the M1A1 was later adopted by the military and became synonymous with the American fighting force. This replica boasts a full metal construction and realistic wooden accents. This has a rapid-fire rate of 600-700 rounds per minute and an effective range of up to 50 meters.