Fusion, SLAB Sided (Mono) Style, new Pro- Series GRADE Fusion, Forged Stainless steel & PRECISION CNC MACHINED 45 ACP 1911, full size, 5 inch Government, pistol slide. Matte bead blasted finish, you can upgrade to high polished sides for additional charge. This slide is very High Quality. Rear cocking serrations, Standard Dovetail rear sight cut for the standard .495 x 65 deg cut and .330 x 65 x .070 front dovetail cut already complete for you. 45 ACP Breech face, Lowered and relieved ejection port, This is a Fusion PRO series Match grade 1911 Government slide and will work with most Government and A-1, 1911 pistols and clones. Made with 9mm firing pin hole to handle higher pressures.