The only thing that basically variations amongst different products is the dimensions. Compact uses a shorter grip and slide made for concealed carry. The Centurion product retains the shorter slide and provides some size to the grip, and is best created for off-responsibility carry or for anyone with greater palms. https://beretta-apx-muzzle-brake25567.creacionblog.com/26747972/beretta-92fs-muzzle-brake-an-overview