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Directory / Compare / Reflex vs P365 Nitron Micro-Compact
Side-by-side · Manufacturer-published fields only

FN America Reflex vs SIG SAUER P365 Nitron Micro-Compact

Both are 9x19mm Parabellum micro-compact records in this directory. The Reflex is ≈10.5 mm / ≈0.4 in longer overall; its barrel is ≈5.06 mm / ≈0.2 in longer; the Reflex lists 1 round more of standard capacity. 2 fields are not comparable — overall height, weight — because the makers publish them on different measurement bases.

Computed differences06
FieldDifference
Overall length≈10.5 mm / ≈0.4 in (Reflex is greater)
Overall width≈1.6 mm / ≈0.06 in (P365 Nitron Micro-Compact is greater)
Overall heightNot comparable — Reflex: magazine state not stated by FN; P365 Nitron Micro-Compact: magazine state not stated by SIG SAUER
Barrel length≈5.06 mm / ≈0.2 in (Reflex is greater)
WeightNot comparable — Reflex: magazine state not stated by FN; P365 Nitron Micro-Compact: magazine state not stated by SIG SAUER
Standard capacity1 round (Reflex 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: Reflex vs P365 Nitron Micro-CompactBoxes drawn from published overall dimensions at one scale, aligned at the rear. FN America Reflex: 157.5 mm long, 25.4 mm wide; SIG SAUER P365 Nitron Micro-Compact: 147 mm long, 27 mm wide.050 mm100 mm150 mmLengthReflex is 10.5 mm longerTop · length × width
  • FN America ReflexLength ≈157.5 mm / 6.2 inWidth ≈25.4 mm / 1 in
  • SIG SAUER P365 Nitron Micro-CompactLength 147 mm / 5.8 inWidth 27 mm / 1.06 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 the heights are not published on one stated basis (Reflex: magazine state not stated by FN; P365 Nitron Micro-Compact: magazine state not stated by SIG SAUER).
Published fields, side by side
FieldReflexP365 Nitron Micro-Compact
ManufacturerFN AmericaSIG SAUER
Manufacturer size labelNot publishedMicro-Compact
Directory frame classMicro-compactMicro-compact
Chambering9x19mm Parabellum9x19mm Parabellum
Overall dimensions≈157.5 × 25.4 × 108.5 mm / 6.2 × 1 × 4.27 in (height: magazine state not stated by FN)147 × 27 × 109 mm / 5.8 × 1.06 × 4.3 in (height: magazine state not stated by SIG SAUER)
Barrel length≈83.8 mm / 3.3 in78.74 mm / 3.1 in
Weight≈522 g / 18.4 oz (magazine state not stated by FN)504.6 g / 17.8 oz (magazine state not stated by SIG SAUER)
Standard capacity11 rounds10 rounds
Trigger pull≈20–24.5 N / 4.5–5.5 lbNot published
VerificationSource verified 2026-09-30Source verified 2026-08-12
Full records, with every value beside the source it came from: FN America Reflex · SIG SAUER P365 Nitron Micro-Compact. More from these makers: FN America · SIG SAUER.
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.