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I would keep calling HK until I got to speak with a person
Randy I.
1 year ago
Hi Thomas and welcome. I would contact Heckler & Koch Customer Service to see what should have come and/or get other size backstraps at Customer Service: (706) 701-5554, Hours (M-F 9:30AM – 4:30PM). Cheers and stay safe!
James G.
1 year ago
It is normal as the USP models do not have changeable back straps. The pin you're referring to is for the main spring housing. Since 1993, the USP has never had changeable back straps.
Christopher N.
1 year ago