The contract NYETI is referring to is the US Customs and Border Protrction (CBP) contract for 40 caliber LEM HK's including USP Compacts, P2000s. P2000sk's and a limited number of P30L's. The former immigration and naturalization service, which included the US border patrol, begin issuing HK USP compact LEM's around 1998 or 1999. CBP, of which the US border patrol is now a part, has over 40,000 armed law enforcement officers The majority of which are issued the HK P 2000.
I've been working with or around these guns for over 15 years, the only magazine related failures I'm aware of are the zipper welds on the back occasionally cracking after being repeatedly dropped onto concrete.
Border patrol agents are like Marines, if you lock them in a room with two bowling balls, they will break one and lose or impregnate the other.
These officers have done pretty much everything you can imagine to these guns, including one guy who put his gun in the oven only to have his wife put the oven on and roast his service weapon. I'd say they are pretty well vetted.