• Features attractive CNC machined diamond checkered serrations that provide a positive gripping surface
• Custom machined top window port
• Slide machined hardened Stainless steel for long lasting performance
• Machined to accept Trijicon RMR, SRO or Holosun 507 red dot optics
• Compatible with Gen3 G21, G20 or P80 PF45 45acp frames
• Compatible with 45acp 3rd Gen G21 Slide Internals.
• QPQ Nitride finish
• Channel liner installed
• Professional gunsmith installation recommended