page_title: 122 mm gun M1931/37 (A-19)
section_title: Description
hierarchical_section_title: 122 mm gun M1931/37 (A-19) / Description
caption_attribution_description: Soviet 122 mm А-19 Mark 1931/37 gun, displayed in Saint Petersburg Artillery Museum. Photo taken on 3 Marсh, 2007. Source: Photo by me, User:Saiga20K.
context_page_description: 122 mm corps gun M1931/37 (A-19) was a Soviet field gun developed in late 1930s by combining the barrel of the 122 mm gun M1931 (A-19) and the carriage of the 152 mm howitzer-gun M1937. The gun was in production from 1939 until 1946. It saw action in World War II and remained in service for a long time after the end of the war. Vehicle-mounted variants of the gun were fitted to the IS-2 and IS-3 tanks of the Iosif Stalin series of tanks and the ISU-122 self-propelled gun.
context_section_description: Like barrel of late production M1931, the barrel of the M1931/37 was of loose liner construction, and consisted of liner, jacket and screwed-upon breech. The breechblock was of interrupted screw type, similar in construction to  that of the 152 mm howitzer M1910/37. Recoil system consisted of hydraulic recoil buffer and hydro-pneumatic recuperator, both located inside the cradle under the barrel.
  The gun had split trail carriage adapted from the 152 mm howitzer-gun M1937 (ML-20). The carriage was fitted with leaf spring suspension and metal wheels with pneumatic tires. The carriage also featured an equilibrator. The shield gave the crew some protection from small arms and shell fragments.
  The M1931/37 was transported as a single piece, with barrel pulled back. It was permitted to tow the gun with barrel in its normal position, but for short distances only and with speed of no more than 4–5 km/h. Several types of artillery tractors were used: S-2 Stalinets-2, Komintern and, from 1943, Ya-12.
caption: The M1931/37 (right) stands beside what appears to be its predecessor, the M1931, in the Artillery Museum in Saint Petersburg.
exif: {"Image Make": "Canon", "Image Model": "Canon DIGITAL IXUS 50", "Image XResolution": "180", "Image YResolution": "180", "Image Software": "Picasa 3.0", "Image ResolutionUnit": "Pixels/Inch", "Image DateTime": "2007:03:03 14:28:27", "Image YCbCrPositioning": "Centered", "Image Tag 0x1001": "2592", "Image Tag 0x1002": "1944", "Image ExifOffset": "290", "Image CustomRendered": "Normal", "Image ExposureMode": "Auto Exposure", "Image WhiteBalance": "Manual", "Image DigitalZoomRatio": "1", "Image SceneCaptureType": "Standard", "Thumbnail Compression": "JPEG (old-style)", "Thumbnail XResolution": "72", "Thumbnail YResolution": "72", "Thumbnail ResolutionUnit": "Pixels/Inch", "Thumbnail JPEGInterchangeFormat": "2380", "Thumbnail JPEGInterchangeFormatLength": "4807", "EXIF ExposureTime": "1/500", "EXIF FNumber": "14/5", "EXIF ExifVersion": "0220", "EXIF DateTimeOriginal": "2007:03:03 14:28:27", "EXIF DateTimeDigitized": "2007:03:03 14:28:27", "EXIF ComponentsConfiguration": "YCbCr", "EXIF CompressedBitsPerPixel": "5", "EXIF ShutterSpeedValue": "287/32", "EXIF ApertureValue": "95/32", "EXIF ExposureBiasValue": "0", "EXIF MaxApertureValue": "95/32", "EXIF MeteringMode": "Pattern", "EXIF Flash": "Flash did not fire, compulsory flash mode", "EXIF FocalLength": "29/5", "EXIF FlashPixVersion": "0100", "EXIF ColorSpace": "Uncalibrated", "EXIF ExifImageWidth": "1944", "EXIF ExifImageLength": "2592", "EXIF FocalPlaneXResolution": "11520", "EXIF FocalPlaneYResolution": "81000/7", "EXIF FocalPlaneResolutionUnit": "2", "EXIF SensingMethod": "One-chip color area", "EXIF FileSource": "Digital Camera", "EXIF ImageUniqueID": "ca4683b8b57d20af296e98d568a8dffe"}