https://www.lspi.com/CAPTURED-RECOIL-GUIDE-ROD-W-SPRING--For-GLOCK-Models-17-22-31-24-17L-GEN-4-ONLY_p_28.html
CAPTURED RECOIL GUIDE ROD W/ SPRING - For GLOCK Models: 17, 22, 31, 24, 17L (GEN 4 ONLY)-For GLOCK Models: 17, 22, 31, 24, 17L (GEN 4 ONLY)Improves cy
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