GLOCK 9 Coil Magazine Spring (See Description)

GLOCK Magazine Spring; 9mm, 10mm, .40, .357, .45 GAP (9-coil)

Models: G19, G23, G26, G27, G29, G30, G32, G33, G38, G39 (including Gen4)

Use only in older G30 magazines factory-supplied with 3955 marked followers