Glock OEM Locking Block SP01447 GEN 1-4 17 20 21 22 24 31 34 35 37 41

Designed to fit Glock Gen 1-4 Models: G17, G20, G20SF, G21, G21SF, G22, G24, G31, G34, G35, G37, G41.

Reinforce your Glock’s frame strength and barrel lockup with the OEM Locking Block (Part# SP01447), from NDZ Performance. A critical component of the pistol’s recoil and cycling system that is designed for mid-2002 and later Gen 1–4 models. This factory-original part ensures proper alignment and structural integrity under live fire. Built to Glock’s precise standards for durability and fit, don’t cut corners on high-stress components. Factory fit, critical function; available now at NDZ Performance.

Features:

• Maintains frame strength and ensures proper barrel lockup.
• Genuine Glock part, factory fit and function.
• Drop-in installation, no modifications needed.
• Ideal for rebuilds, repairs, or preventative maintenance.
• Trusted OEM construction for long-term reliability.

See our complete line of Glock Gen 1-4 Products here

Note: NDZ always recommends any part be installed by a qualified and trained gunsmith. NDZ promotes the use of safety practices and gear when working on any firearm.