GM chassis

GM (Russian: Gusenichnaya Mashina, Гусеничная машина, lit. tracked machine) is a series of tracked vehicle chassis. Generally, the series is produced by Metrovagonmash (former Mytishchinskiy Mashinostroitelniy Zavod, MMZ), part of the Transmashholding since 2002. Some older series were developed and produced by Minsk Tractor Works (MTZ)

GM-569 is used for the TELAR 9A38, part of the Buk-M1-2 SAM system.

Designed and developed at Metrovagonmash (previously MMZ and OKB-40):

Also MMZ produced GM-569, GM-567A, GM-562, GM-5959, GM-5951, GM-5952.

Designed and developed at Minsk Tractor Works (MTZ):

By others:

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Wikipedia