"Don't be fooled by other reviews saying this mag is 16.99 "everywhere else." The 17-dollar price is that of the plastic mag, not the full-metal model shown here. I have this mag and it works great in my USP, gives it a much nicer, lower center of gravity as opposed to a plastic version. The plastic one that came with the gun broke after 6 months, this one has been playing 8 months and still going strong. Nice mag and at a reasonable price."