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Directory / Compare / P320 Full-Size vs M&P 9 M2.0
Side-by-side · Manufacturer-published fields only

SIG SAUER P320 Full-Size vs Smith & Wesson M&P 9 M2.0

Both are 9x19mm Parabellum full-size records in this directory. The P320 Full-Size is 15 mm / 0.6 in longer overall; its barrel is 11.38 mm / 0.45 in longer; both list 17-round standard magazines. One field is not comparable — weight — because the makers publish them on different measurement bases.

Computed differences06
FieldDifference
Overall length15 mm / 0.6 in (P320 Full-Size is greater)
Overall widthNot published by both
Overall heightNot published by both
Barrel length11.38 mm / 0.45 in (P320 Full-Size is greater)
WeightNot comparable — P320 Full-Size publishes with empty magazine; M&P 9 M2.0 publishes unloaded
Standard capacityIdentical figures
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.
Size, to scale
To-scale size envelopes: P320 Full-Size vs M&P 9 M2.0Boxes drawn from published overall dimensions at one scale, aligned at the rear. SIG SAUER P320 Full-Size: 203 mm long; Smith & Wesson M&P 9 M2.0: 188 mm long.050 mm100 mm150 mm200 mmLengthP320 Full-Size is 15 mm longer
  • SIG SAUER P320 Full-SizeLength 203 mm / 8 in
  • Smith & Wesson M&P 9 M2.0Length 188 mm / 7.4 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. Heights are not drawn because M&P 9 M2.0 publishes no overall height. Widths are not drawn because M&P 9 M2.0 publishes no overall width.
Published fields, side by side
FieldP320 Full-SizeM&P 9 M2.0
ManufacturerSIG SAUERSmith & Wesson
Manufacturer size labelFull-SizeFull Size
Directory frame classFull-sizeFull-size
Chambering9x19mm Parabellum9x19mm Parabellum
Overall dimensions203 × 32 × 140 mm / 8 × 1.25 × 5.5 in (height: magazine state not stated by SIG SAUER)length 188 mm / length 7.4 in (width and height not published)
Barrel length119.38 mm / 4.7 in108 mm / 4.25 in
Weight802.3 g / 28.3 oz (SIG states "w/ Magazine" and does not say the magazine is empty)822 g / 29 oz (Smith & Wesson states no magazine basis)
Standard capacity17 rounds17 rounds
VerificationSource verified 2026-08-12Source verified 2026-09-30
Full records, with every value beside the source it came from: SIG SAUER P320 Full-Size · Smith & Wesson M&P 9 M2.0. More from these makers: SIG SAUER · Smith & Wesson.
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.