This 9mm load is rated at +P pressures and as such it is safe to use in any/all 9mm chambered pistols that are in normal operating condition. The hard cast bullet will not lead foul a functional barrel that is in a normal state of operation, including polygonal barrels, in any make of pistol, including Glock pistols. This load is designed to penetrate deep (4 to 6 feet) in a straight line, through flesh and bones and that flat nose does considerably more terminal damage, as it crushes its way through tissues. It keeps the bullet nose forward and ensures very deep straight-line penetration. Specifications: 9mm Luger/147 gr/ Hard Cast Flat Nose (HCFN)/20 Per Box/12 Cs