Comparable records · 4 verified substitutes

Alternatives to the SIG SAUER P320 Full-Size

This directory holds 4 verified records in the same class and chambering as the SIG SAUER P320 Full-Size: 9x19mm Parabellum full-size pistols from 3 manufacturers. The nearest, the PDP Standard Full Size 4.5", sits 0 mm from the subject on published overall length; the furthest, 7 mm. They are ordered by that distance — a measured criterion, not a ranking. Nothing on this page is ranked or recommended.

Same class, same chambering04
01Walther · Full Size

Walther PDP Standard Full Size 4.5"

The PDP Standard Full Size 4.5" is ≈0.2 mm longer overall, ≈3.6 mm / ≈0.15 in wider, and ≈5.08 mm / ≈0.2 in less barrel. It lists 1 round more of standard capacity. 2 fields do not compare — overall height and weight — because the two sources publish them on different measurement bases. On overall length, the published inch figures are identical, so this difference does not resolve in that unit.

18-round standard magazineChecked 2026-08-12
Open the side-by-side →
02Glock · Standard

Glock G17 Gen 6

The G17 is 1 mm / 0.05 in shorter overall, 2 mm / 0.09 in wider, and 5.38 mm / 0.21 in less barrel. Both list 17-round standard magazines. 2 fields do not compare — overall height and weight — because the two sources publish them on different measurement bases.

17-round standard magazineChecked 2026-08-11
Open the side-by-side →
03Glock · Standard

Glock G47

The G47 is 1 mm / 0.05 in shorter overall, 2 mm / 0.09 in wider, and 5.38 mm / 0.21 in less barrel. Both list 17-round standard magazines. 2 fields do not compare — overall height and weight — because the two sources publish them on different measurement bases.

17-round standard magazineChecked 2026-08-11
Open the side-by-side →
04SIG SAUER · Full-Size

SIG SAUER P226 Nitron Full-Size

The P226 Nitron Full-Size is 7 mm / 0.3 in shorter overall, 6 mm / 0.25 in wider, and 7.62 mm / 0.3 in less barrel. It lists 7 rounds fewer of standard capacity. One field does not compare — weight — because the two sources publish them on different measurement bases.

10-round standard magazineChecked 2026-08-12
Open the side-by-side →
How this set is derived: every record above is one the directory already publishes a side-by-side page for, so this page adds no comparability claim of its own. A record qualifies as a substitute where it is source-verified and shares both this record's chambering and its directory frame class; a frame class is assigned from the manufacturer's own published size label and never inferred from measurements, so a pistol whose maker publishes no size class appears in nobody's substitute list. Every figure behind the differences above is the manufacturer's published one, and a difference is stated only where both makers measured the field the same way.
What this page will not do: name a best choice, rank the records, or say which suits a person, a purpose, or a jurisdiction. Those depend on fit, training, lawful use and equipment this directory holds no verified data on. It lists what is comparable and what the sources publish, which is the part that can be checked.
Open the SIG SAUER P320 Full-Size record for its full sourced specification, or browse SIG SAUER's other records. Alternatives for other records: G19 · G17 · G47 · G43 · G43X · Dagger Compact · all 17.
Reference information only. Not legal, purchasing, training, carry, storage, or assembly advice. Manufacturer technical data are rounded and may change without notice.