Description
Sig Sauer P365 FLUX — 9mm, 6" (Romeo-X Compact, 17+1 / 21+1 mags — Gear Pack)
PDW-like controllability in a compact package — optic-ready, high-capacity, and stabilizer-ready.
The Sig Sauer P365 FLUX blends the compact ergonomics of the P365 family with FLUX-chassis stability and extended-barrel performance. Chambered in 9mm and built around a 6.0" custom barrel with Nitron-finished slide/chassis, this FLUX configuration ships optic-ready and commonly includes a factory-mounted ROMEO-X Compact red-dot and a magazine set (two 21-round and one 17-round mags) for extended, ready-to-run capacity.
Key Features
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Model / Caliber: Sig Sauer P365 FLUX — 9mm Luger.
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Barrel / Length: 6.0" precision barrel (integrated muzzle shroud on many builds) for improved velocity and sight radius.
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Optic: Factory-installed ROMEO-X Compact red-dot in many Gear-pack / RXSL variants for immediate red-dot use out of the box.
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Capacity / Magazines: High-capacity set — typically ships with two 21-round magazines and one 17-round magazine (verify specific package).
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Finish / Materials: Nitron finished slide/chassis and durable construction for corrosion resistance and service life (verify exact variant specs).
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Controls & Sights: Ambidextrous controls, XRAY3 day/night or co-witness backup irons on many SKUs; Picatinny accessory options up front.
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Use / Role: Compact PDW-style pistol built for high-capacity carry, home defense, and suppressed or brace-equipped setups where allowed.
Why It Stands Out
The P365 FLUX takes the shootability and compact footprint of the P365 and stretches its capability: a 6" barrel and FLUX chassis give better stability and sight radius than a typical micro-pistol, while factory optic integration (ROMEO-X) and high-capacity magazines let you move straight from purchase to practical training or defensive deployment. It’s a platform that feels like a compact carbine in pistol clothing.
Perfect For
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Concealed-carry owners who want maximum capacity in a small footprint
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Home-defense shooters wanting compact PDW-like controllability with optic capability
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Instructors and students training with micro-red-dot setups and higher magazine counts
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Enthusiasts who want a factory-integrated red-dot and extended magazine set out of the box









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