Heckler & Koch USP & USP Compact Variant 3+4 Detent Plate
Factory OEM Variant 3+4 detent plate.
Manufactured in Germany from stamped steel. This is a factory original part from designed to fit H&K USP and USP Compact pistols. The detent plate is stamped “3+4” for those pistol models with a double action/single action, decocking lever and no safety.
For use in:
- HK USP – Variant 3 & 4
- HK USP Compact – Variant 3 & 4


Kelly (verified owner) –
Shipped lightning fast, same day as I ordered.
Genuine HK detent 3+4 plate. Installed extremely easy. Maybe took 45 seconds. Removed the safety feature and now my HK USP is a decocker only- as the Lord intended
. Sol knocked it out of the park yet again. Thank you!
Nick C. (verified owner) –
Turns your USP into the proper configuration that Obendorf intended. Sol is always able to get the rare HK hotness.
Aaron (verified owner) –
I haven’t installed it yet because I’m still waiting on springs, but it appears to be a genuine, brand new decocker plate in factory packaging. Great deal on a hard to find part. I love the package of ramen and the note that was included with the order. This was my first order, but definitely won’t be my last.
Ryan D. (verified owner) –
This is it, the hard-to-find decocker only plate that should come with all USPs, but doesn’t. Paired with the appropriate lever, this is a nice upgrade for those of us that don’t like a safety on our DA/SA guns. After searching fruitlessly for months, leave it to Rooftop to randomly have these in stock…