Eemann Tech Magazine Spring for 33 Rounds 9x19mm GLOCK Magazine (17 coils).

This spring will work with following standard magazines:
• 9x19mm 33 rounds Glock magazine
• .40SW 22 rounds Glock magazine

Specifications:
• Made of steel, with thermic treatment for the best performance and quality!
• Varied, progressive structure provides constant pressure with greatly increased spring performance and life.
• Magazine spring made of steel according to UNE10270-1-SM norm, with thermic treatment.