This directory holds 4 verified records in the same class and chambering as the Shadow Systems MR920: 9x19mm Parabellum compact pistols from 4 manufacturers. The nearest, the Dagger Compact, sits 1 mm from the subject on published overall length; the furthest, 21 mm. They are ordered by that distance — a measured criterion, not a ranking. Nothing on this page is ranked or recommended.
The Dagger Compact is ≈0.6 mm / ≈0.03 in longer overall and ≈2.5 mm / ≈0.1 in less barrel. Both list 15-round standard magazines. 2 fields do not compare — overall height and weight — because the two sources publish them on different measurement bases.
The G19 is ≈4 mm / ≈0.16 in longer overall and ≈0.4 mm / ≈0.02 in more barrel. Both list 15-round standard magazines. 2 fields do not compare — overall height and weight — because the two sources publish them on different measurement bases.
The P-10 C is ≈6 mm / ≈0.28 in longer overall and ≈0.4 mm more barrel. Both list 15-round standard magazines. 2 fields do not compare — overall height and weight — because the two sources publish them on different measurement bases. On barrel length, the published inch figures are identical, so this difference does not resolve in that unit.
The G3c is ≈21 mm / ≈0.83 in shorter overall and ≈20.3 mm / ≈0.8 in less barrel. It lists 3 rounds fewer of standard capacity. 2 fields do not compare — overall height and weight — because the two sources publish them on different measurement bases.
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.
Reference information only. Not legal, purchasing, training, carry, storage, or assembly advice. Manufacturer technical data are rounded and may change without notice.