Bigger mags deserve better springs. The Extended Magazine Spring is the stainless steel upgrade spring built specifically for extended Gas Blowback Pistol (GBBP) magazines.
Made from SS304 stainless steel wire for maximum tensile strength and long service life, the JAS-SPX01 doesn’t just perform better than stock—it looks better too. Each spring is electroplated in Jefe’s signature red finish, adding corrosion resistance and giving your mags a bold, unmistakable identity on and off the field.
Key Features
Designed for Extended GBBP Mags — reliable feed in longer, higher-capacity magazines.
SS304 Stainless Wire — proven strength and durability.
Red Electroplated Finish — helps identify extended mags at a glance.
Compatibility- This spring is compatible with a vast majority of gas blowback pistol extended magazines. The most commonly used models include AAP-01, Hi-Capa, Glocks, G Series, TP22, Cthulhu, and others.
