Caliber .45 – Increased capacity of 8-rounds – Text of the US Consitution 2nd Amendment laser engraved on the magazine – Carbon Steel tube heat-treated for strength – Internal components are linked together to offer easy disassembly and reassembly – Lubricated nylon polymer follower with metal insert where the slide stop activates properly aligns all types of ammunition for the most reliable feeding. – Spring is manufactured from from higher tensile music wire with a drawn phosphate coating for easier coiling properties and longer service life – Redesigned high impact polymer removable butt-plate is tapered to fit funneled mag wells