Description
The genuine GLOCK OEM factory recoil spring assembly is a complete, captured drop-in replacement engineered specifically for Gen5 compact and crossover 9mm platforms. Utilizing GLOCK’s advanced dual-spring design, this assembly spreads the recoil impulse over two distinct stages to significantly smooth out felt recoil, minimize frame battering, and increase muzzle control during rapid-fire strings. Manufactured to identical specs and materials as your pistol’s stock part, it restores 100% factory cycling timing and duty reliability.
- Genuine GLOCK Factory OEM Part: Factory Part Number 34310 / SP39310 (end-cap marked “1-7”) — guarantees blueprint-perfect fitment and optimal factory engineering performance.
- Dual-Spring Assembly: Features a multi-stage spring compression system that tempers recoil for repeatable, flat-shooting accuracy.
- Captured Sub-Assembly: Springs are secured onto the composite guide rod, ensuring a fast, tool-less drop-in swap during routine field stripping.
Compatibility:
- Fits GLOCK Gen5 9x19mm Models: GLOCK 19 Gen5, 19X, 45, and 47 MOS.
- Notice: Does NOT fit legacy Gen1 through Gen4 slide configurations or Slimline single-stack models (G42, G43, G43X, G48).





