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MANUFACTURER · UPDATED MAY 16, 2026

Used SIG Sauer Values 2026:
Every Model, Every Caliber.

SIG Sauer's roots go back to Swiss Industrial Company (SIG) in 1853 and J.P. Sauer & Sohn in 1751 — the two firms partnered in 1976 to produce the P220. Today SIG Sauer is the U.S. military's standard sidearm contractor (M17 / M18 / MHS program, adopted 2017) and produces the dominant carry-pistol family (P365), one of the most-adopted duty pistols (P320), the gold-standard service-grade DA/SA (P226 / P229), and an expanding rifle line (MCX, MPX, M400, Cross). Limited-edition Legion series command meaningful premiums.

Founded: 1853 Country: Switzerland / Germany / USA Total models listed: 218
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P-Series Classic (P210 / P220 / P226 / P229)

SIG's classic single-/double-action service pistols — the standard against which others are judged.

P320 Modular Pistols

The modular striker-fired pistol that won the U.S. military's MHS contract as the M17 / M18.

P365 Micro-Compact Pistols

SIG's category-defining micro-9 — high capacity in a true pocket-pistol footprint.

Rifles (MCX / MPX / M400 / Cross / 716)

SIG's modular rifle and PCC platform.

Rimfire / Specialty

Air rifles, rimfires, the SIG Mosquito, and the discontinued P229 Stainless Rimfire.

Limited Editions / Legion Engraved

Legion series and Custom Works limited runs — significantly more valuable than base configurations.

SIG Sauer Value FAQ

Are W. German SIGs worth more than current production?

Significantly more. P220, P225, P226, and P228 pistols stamped 'Made in W. Germany' (pre-1991) command 50-100% premiums over equivalent current production. The build quality, polish, and milled-slide vs stamped-slide construction makes these the gold standard for SIG collectors. Watch for original boxes and matching numbers.

What is the Legion series?

Legion is SIG's premium production line — enhanced trigger, X-RAY night sights, G10 grips, custom slide treatment, and lifetime warranty. Legion pistols carry MSRP premiums of $300-600 over standard equivalents and hold those premiums well on the used market.

Is the M17 / M18 the same as a P320?

Yes — mechanically identical to a P320 with specific military spec markings, manual safety on commercial-issue M17/M18 variants, and SIG's coyote brown polymer (Cerakote). The Commemorative M17 and M18 came in limited numbers with serial-number ranges matching the contract; those carry collector premiums.

What's the X-Macro?

Released 2022, the P365 X-Macro is a 17+1 capacity micro-9 that competes directly with the Glock 19 and Sig P320 Compact while maintaining a narrow footprint. The Comp variant adds an integrally compensated slide for reduced muzzle flip. Selling very strong on the new and used markets.