SIG SAUER P226 Nitron Full-Size vs Smith & Wesson M&P 9 M2.0

Both are 9x19mm Parabellum full-size records in this directory. The P226 Nitron Full-Size is 8 mm / 0.3 in longer overall; its barrel is 3.76 mm / 0.15 in longer; the M&P 9 M2.0 lists 7 rounds more of standard capacity. One field is not comparable — weight — because the makers publish them on different measurement bases.

Computed differences06

Field	Difference
Overall length	8 mm / 0.3 in (P226 Nitron Full-Size is greater)
Overall width	Not published by both
Overall height	Not published by both
Barrel length	3.76 mm / 0.15 in (P226 Nitron Full-Size is greater)
Weight	Not comparable — P226 Nitron Full-Size: magazine state not stated by SIG SAUER; M&P 9 M2.0: Smith & Wesson states no magazine basis
Standard capacity	7 rounds (M&P 9 M2.0 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.

Size, to scale

SIG SAUER P226 Nitron Full-SizeLength 196 mm / 7.7 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

Field	P226 Nitron Full-Size	M&P 9 M2.0
Manufacturer	SIG SAUER	Smith & Wesson
Manufacturer size label	Full-Size	Full Size
Directory frame class	Full-size	Full-size
Chambering	9x19mm Parabellum	9x19mm Parabellum
Overall dimensions	196 × 38 × 140 mm / 7.7 × 1.5 × 5.5 in (height: magazine state not stated by SIG SAUER)	length 188 mm / length 7.4 in (width and height not published)
Barrel length	111.76 mm / 4.4 in	108 mm / 4.25 in
Weight	964 g / 34 oz (magazine state not stated by SIG SAUER)	822 g / 29 oz (Smith & Wesson states no magazine basis)
Standard capacity	10 rounds	17 rounds
Verification	Source verified 2026-08-12	Source verified 2026-09-30

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.