Machined from a single block of 4140 alloy steel, the O.Z-9 internal steel receiver reduces the flex associated with polymer frames, has an integrated locking block and longer slide rails which provide more contact with the slide. This amounts to less felt recoil, less muzzle flip, faster follow up shots and improved accuracy. In addition to an O.Z-9 Steel Receiver, each O.Z-9 MBK includes the following necessary components to complete your build:

Features :

• ZEV O.Z-9 Slide Lock Lever and Spring
• ZEV O.Z-9 Trigger Pin
• ZEV O.Z-9 Ejector Housing Pin
• ZEV Enhanced Extractor
• Extended Slide Release Lever