The Bishop Defense Tier 1.5 Slide delivers a clean, rugged upgrade for Glock shooters who want enhanced grip and optic capability—without the window cuts. Featuring an RMR footprint and aggressive diamond-grooved serrations, this slide is built for duty use with maximum reliability. Features: Front and rear serrations for confident slide manipulation Diamond-textured knurling for a secure, no-slip grip RMR optic cut with boss lugs for rock-solid fitment Includes RMR cover plate and mounting screws made to the same spec as Noveske slides BD19 Flat Face Trigger - Faster, smoother, and fully safety-compliant — designed for serious responsiveness. Flat face with ERGO-FIT design Reduced pre-travel Clean, crisp break BD19 Match Grade Barrel - Crafted from premium 416 stainless steel and machined to exact SAAMI specs. Match-grade accuracy Corrosion-resistant finish Perfect fit and performance