Documents
United States SIG Sauer
P320-M17
A modular, striker-fired polymer pistol selected by the U.S. Army in 2017 to replace the Beretta M9 as the Modular Handgun System, designated M17 (full-size) and M18 (compact). Its removable fire-control chassis allows caliber and grip-size changes without a new serial number.
In service since 2017 · 10 operator countries
Compiled from public sources ·primary reference ↗
50
m range
365
m/s
17
rds
💲 ≈ $580, Approximate U.S. military per-unit contract price
Procurement snapshot
Availability & export
US ITAR-controlled
Export needs U.S. State Dept (DDTC) approval; end-use & re-transfer restrictions apply.
Channel: Foreign Military Sales (FMS) or Direct Commercial Sale
Fielded & proven
Established · 10 operators
In service since 2017. Status: active · ~500,000 built.
Lifecycle cost (est.)
Unit cost known; one-shot / small-arms class has no meaningful O&S tail to model.
Interoperability
Competitive field
19 comparable systems from 12 other manufacturers
Counted in the WeaponSpecs database: pistols built by another manufacturer that share at least one published role with this system. A count of what this catalog holds, not a survey of the whole market. See the alternatives →
Derived guidance from public data, export regime by country of origin, lifecycle from the GAO ~30% acquisition rule. Verify eligibility, pricing and offsets with the manufacturer and your acquisition authority.
Full specifications
Performance
Speed, range, altitude and engagement capability.
| Effective range Distance at which the weapon reliably hits point targets. Higher extends engagement envelope. | 50 m |
|---|---|
| Muzzle velocity Projectile speed leaving the barrel. Higher means flatter trajectory and better armor penetration. | 365 m/s |
Firepower
Armament, payload and guidance.
| Main armament Primary weapon: main gun, cannon or missile type. | 9×19 mm Parabellum |
|---|---|
| Caliber Bore diameter of the main gun or rifle. Larger throws heavier projectiles; not simply better, ammunition commonality matters. | 9 mm |
| Ammunition Rounds carried (main gun) or standard magazine capacity. | 17 |
Physical
Dimensions, weight and crew.
| Length Overall length including gun/probe where applicable. | 0.2 m |
|---|---|
| Empty weight Weight without fuel, ammunition or crew. | 1 kg |
| Crew Personnel required to operate. Fewer reduces exposure; autoloaders trade a loader for mechanical complexity. | 1 |
| Barrel length Barrel length, longer improves muzzle velocity and accuracy, shorter improves handling. | 119 mm |
Program
Cost, production scale and operators.
| Unit cost Approximate flyaway/unit cost where public. Defense pricing varies hugely by contract, offsets and configuration. Lower is cheaper. | $580 |
|---|---|
| Units built Total production run. Higher means proven manufacturing, mature logistics and spares availability. | 500,000 |
| Operator countries Number of countries operating the system. More operators means broader support ecosystem. | 10 |
Specifications compiled from public SIG Sauer and reference sources ↗. Published defense figures are approximations, treat comparisons as directional. Last verified 2026-07-02.
Compare with rivals
See how it stacks up
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P320-M17 vs
Glock 17 
USP Frequently asked questions
How many crew does the SIG Sauer P320-M17 require? +
The SIG Sauer P320-M17 requires a crew of 1.
What is the main armament of the SIG Sauer P320-M17? +
The SIG Sauer P320-M17's primary weapon is the 9×19 mm Parabellum.
What is the SIG Sauer P320-M17 used for? +
The SIG Sauer P320-M17 is a pistol & sidearm typically used for infantry combat.
How many countries operate the SIG Sauer P320-M17? +
The SIG Sauer P320-M17 is operated by 10 countries.
How much does the SIG Sauer P320-M17 cost? +
The SIG Sauer P320-M17 has an approximate unit cost of 580 USD. Defense pricing varies by contract, offsets and configuration, treat this as directional.
Similar systems
Related coverage
P320-M17 in the news
Article buying · Aug 24, 2026
What 113,479 Inspected M18s Didn't Settle About the P320
The Air Force found zero failure signs across 113,479 M18s, but most civilian P320s lack the external safety hardware that review actually covered.
Article comparison · Aug 9, 2026
How Polymer Frames Changed Pistol Rounds Per Kilogram
9x19mm pistols from 1982 on average carry 20.7 rounds per kilogram versus 15.4 for older designs, a 34% gain from polymer frames alone.