Glock 17, 22, 24, 34, 35 140mm GL3 Magazine Spring Chrome Silicon by ISMI
A 12 coil spring designed for competitors using Plus 4 (140mm length) extensions.
Important Warning: Modification to your firearm may nullify the manufacturers warranty. This product must be installed by a qualified gunsmith. No liability is expressed or implied for damage or injury which may result from improper installation or use of this product.