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Directory / Compare / USP40 (V1) vs USP9 (V1)
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Heckler & Koch USP40 (V1) vs Heckler & Koch USP9 (V1)

Heckler & Koch publishes both as USP models. They are chambered differently — the USP40 (V1) in .40 S&W, the USP9 (V1) in 9x19mm Parabellum — so nothing below compares their cartridges. The two list the same overall length; both list the same barrel length; the USP9 (V1) lists 2 rounds more of standard capacity; the USP40 (V1) is 50 g / 1.76 oz heavier under matched conditions.

Computed differences06
FieldDifference
Overall lengthIdentical figures
Overall widthIdentical figures
Overall heightIdentical figures
Barrel lengthIdentical figures
Weight50 g / 1.76 oz (USP40 (V1) is greater)
Standard capacity2 rounds (USP9 (V1) is greater)
How these differences are computed: each is the arithmetic difference between the two published figures, and it is only shown where both sources measured the field the same way. Where a source states a measurement basis the other does not match, the row says so instead of subtracting — figures on different bases are not comparable even when the numbers sit side by side. Differences marked ≈ involve at least one figure this directory converted between unit systems, so the difference is no more precise than that conversion.
Size, to scale
To-scale size envelopes: USP40 (V1) vs USP9 (V1)Boxes drawn from published overall dimensions at one scale, aligned at the rear. Heckler & Koch USP40 (V1): 195 mm long, 135 mm high, 32 mm wide; Heckler & Koch USP9 (V1): 195 mm long, 135 mm high, 32 mm wide.050 mm100 mm150 mmSide · length × heightTop · length × width
  • Heckler & Koch USP40 (V1)Length 195 mm / 7.68 inHeight 135 mm / 5.31 inWidth 32 mm / 1.26 in
  • Heckler & Koch USP9 (V1)Length 195 mm / 7.68 inHeight 135 mm / 5.31 inWidth 32 mm / 1.26 in
Boxes, not silhouettes: makers publish a pistol's overall envelope, not its shape, so that is all this draws. Every box is aligned at the rear and drawn at one fixed scale, the same on every page of this site, so drawings compare across pages. It is not life-size on your screen.
Published fields, side by side
FieldUSP40 (V1)USP9 (V1)
ManufacturerHeckler & KochHeckler & Koch
Chambering.40 S&W9x19mm Parabellum
Overall dimensions195 × 32 × 135 mm / 7.68 × 1.26 × 5.31 in195 × 32 × 135 mm / 7.68 × 1.26 × 5.31 in
Barrel length108 mm / 4.25 in108 mm / 4.25 in
Weight820 g / 28.96 oz (HK's own column heading)770 g / 27.2 oz (HK's own column heading)
Standard capacity13 rounds15 rounds
Trigger pull51 N / ≈11.47 lb (double-action); 20 N / ≈4.5 lb (single-action)51 N / ≈11.47 lb (double-action); 20 N / ≈4.5 lb (single-action)
VerificationSource verified 2026-08-13Source verified 2026-08-13
Full records, with every value beside the source it came from: Heckler & Koch USP40 (V1) · Heckler & Koch USP9 (V1). More from these makers: Heckler & Koch.
Reference information only. Not legal, purchasing, training, carry, storage, or assembly advice. Manufacturer technical data are rounded and may change without notice. Spotted an error? Submit a correction.