DETAILS
Brand: Sig Sauer
Model: P320- Flux Legion
Caliber: 9mm Luger
Capacity: 30rd
Barrel Length: 3.9″
OAL: 10.9″
Optic Ready: Yes
Sights: XRAY3 Day/Night Sights
Pistol Size: Full-Size X
Grip Module: Legion Gray Flux Chassis
Trigger Type: Legion Skeletonized Trigger
Barrel Material: Cabon Steel
Finish: Legion Gray
Trigger: Striker
Weight: 49.2 oz.
The SIG SAUER P320 FLUX LEGION 9MM 3.9” 30RD PISTOL with STABILIZING BRACE in LEGION GRAY – model 320FLUX-9-LEGION is a revolutionary hybrid weapon platform that pushes the limits of what a handgun can do. Built on the combat-proven SIG P320 platform and upgraded with a FLUX Defense Raider brace system, this weapon blends the maneuverability of a pistol with the tactical advantages of a PDW (Personal Defense Weapon). Designed for shooters who demand high-capacity, rapid deployment, and elite-level engineering, the P320 FLUX LEGION is a powerhouse in the world of tactical pistols.
The FLUX Raider chassis, paired with SIG’s premium Legion internals and finish, transforms the traditional P320 into a modular, adaptable, and high-capacity firearm ideal for home defense, duty use, competition, or even tactical operations. Whether you’re a law enforcement professional, a high-speed low-drag enthusiast, or a home defender looking for an ultra-compact PDW-style firearm, this weapon delivers next-level control, speed, and reliability.
Key Specifications:
-
Manufacturer: SIG SAUER
-
Model: P320 FLUX LEGION
-
Caliber: 9mm Luger
-
Barrel Length: 3.9 inches
-
Action: Striker-Fired
-
Finish: Legion Gray Cerakote
-
Capacity: 30 rounds (includes high-capacity extended mags)
-
Brace System: FLUX Defense Raider w/ Spring-Assisted Deployment
-
Frame: P320 TXG Legion Full-Size Fire Control Group (FCU)
-
Trigger: Skeletonized Flat-Face LEGION Trigger
-
Optics Ready: Yes, RMR/DeltaPoint footprint
-
Sights: Suppressor-height night sights
-
Accessory Rail: Integrated
-
SKU: 320FLUX-9-LEGION
Hybrid Weapon Platform: The Best of Both Worlds
The SIG P320 FLUX LEGION is not just a handgun—it’s a hybrid personal defense weapon designed for high-stakes performance. At the heart of this firearm is SIG SAUER’s TXG (Tungsten-Infused Polymer) grip module, which provides superior recoil control and balance compared to traditional polymer or alloy frames. When merged with the FLUX Defense Raider brace system, it becomes a rapid-deploying, PDW-style pistol that can stabilize your shots during fast engagement or rapid follow-ups.
The FLUX brace deploys with the push of a button, turning your compact pistol into a braced platform for enhanced control. It’s ideal for vehicle operations, home defense, or scenarios where quick deployment and compact storage are critical.
Barrel and Trigger Performance
With a 3.9-inch barrel, this model balances concealability with ballistic performance. The shorter barrel aids maneuverability in tight spaces, while still maintaining excellent velocity and accuracy for the 9mm round.
The skeletonized flat-face LEGION trigger offers a crisp break, minimal take-up, and a short, tactile reset—ideal for precision shooting, competition, or high-stress defense scenarios. Combined with SIG’s LEGION fire control group, this pistol delivers a consistent and responsive trigger press that’s unmatched in many striker-fired platforms.
High-Capacity Advantage
Equipped with 30-round extended magazines, the P320 FLUX LEGION takes high-volume firepower to the next level. You get nearly double the round count of a standard handgun without sacrificing mobility or compactness. This makes it a highly effective solution for home defense, vehicle carry, or tactical engagements where reload time is critical and volume of fire may be decisive.
Whether you’re defending your home or moving through a training course, those 30 rounds give you both peace of mind and a combat-ready advantage.
Legion Gray Finish & Build Quality
This model features SIG’s proprietary Legion Gray Cerakote finish, offering both corrosion resistance and a striking tactical appearance. The TXG grip module is not only tungsten-infused for weight and recoil absorption, but ergonomically sculpted for ideal hand fit, reducing fatigue and maximizing control.
Every detail, from the slide serrations to the optic cut and accessory rail, is designed for real-world performance. The look and feel of this gun scream professionalism, precision, and strength.
Optics & Sights
The P320 FLUX LEGION comes optics-ready with a slide cut that supports a wide range of micro red dot sights, including the Trijicon RMR, SIG ROMEO1 Pro, and Leupold DeltaPoint Pro. This gives users the flexibility to mount their preferred optic for faster target acquisition and improved accuracy under pressure.
To co-witness with mounted optics or provide excellent visibility when running suppressed, the pistol features suppressor-height XRAY3 night sights. These 3-dot tritium sights glow in low-light conditions and are surrounded by a high-contrast front ring for daylight visibility.
Tactical Features
Beyond raw power and modularity, the P320 FLUX LEGION includes several features that elevate its tactical value:
-
Integrated Picatinny accessory rail for lights or lasers
-
QD sling attachment points on the FLUX brace
-
Ambidextrous controls for left- or right-handed shooters
-
Modular FCU (fire control unit) allows reconfiguration or caliber swaps
-
Spring-assisted brace deployment for near-instant stabilization
This isn’t just a firearm—it’s a tactical tool designed for adaptability, defense, and domination in any environment.
Who Should Buy the P320 FLUX LEGION?
-
Tactical Operators: Law enforcement and military personnel will appreciate the speed, control, and magazine capacity.
-
Home Defenders: It’s compact enough to store securely but powerful and fast-deploying for serious home protection.
-
Firearm Enthusiasts: Those who want something unique, effective, and modular will love the FLUX system’s innovation.
-
Collectors: As one of the most advanced P320 variants to date, it’s a standout addition to any high-end firearm collection.
-
Competitors: For PCC-style divisions or tactical shooting sports, this hybrid platform provides a fast, balanced, and highly controllable setup.
Final Thoughts
The SIG SAUER P320 FLUX LEGION 9MM 3.9” 30RD PISTOL with STABILIZING BRACE – 320FLUX-9-LEGION is a true hybrid combat pistol that elevates the performance of the P320 platform into a new tactical realm. It’s more than just a pistol with a brace—it’s a carefully engineered personal defense weapon, balancing compact design with powerful performance and extended capacity.
For those who want the agility of a handgun, the firepower of a PDW, and the engineering pedigree of SIG SAUER, the FLUX LEGION is the perfect fusion. It’s built for modern threats, high-speed engagements, and the shooter who refuses to compromise.
SIG P320 FLUX LEGION 9MM pistol
SIG FLUX Raider P320 brace
30 round tactical pistol
Legion Gray PDW
SIG P320 with brace
Flux Defense Raider SIG
Best high-capacity home defense pistol
Modular PDW pistol 2025
SIG P320 TXG Legion
Tactical 9mm pistol with brace
The SIG SAUER P320 FLUX LEGION 9MM 3.9” 30RD PISTOL with STABILIZING BRACE in LEGION GRAY – model 320FLUX-9-LEGION is a revolutionary hybrid weapon platform that pushes the limits of what a handgun can do. Built on the combat-proven SIG P320 platform and upgraded with a FLUX Defense Raider brace system, this weapon blends the maneuverability of a pistol with the tactical advantages of a PDW (Personal Defense Weapon). Designed for shooters who demand high-capacity, rapid deployment, and elite-level engineering, the P320 FLUX LEGION is a powerhouse in the world of tactical pistols.
The FLUX Raider chassis, paired with SIG’s premium Legion internals and finish, transforms the traditional P320 into a modular, adaptable, and high-capacity firearm ideal for home defense, duty use, competition, or even tactical operations. Whether you’re a law enforcement professional, a high-speed low-drag enthusiast, or a home defender looking for an ultra-compact PDW-style firearm, this weapon delivers next-level control, speed, and reliability.
Key Specifications:
-
Manufacturer: SIG SAUER
-
Model: P320 FLUX LEGION
-
Caliber: 9mm Luger
-
Barrel Length: 3.9 inches
-
Action: Striker-Fired
-
Finish: Legion Gray Cerakote
-
Capacity: 30 rounds (includes high-capacity extended mags)
-
Brace System: FLUX Defense Raider w/ Spring-Assisted Deployment
-
Frame: P320 TXG Legion Full-Size Fire Control Group (FCU)
-
Trigger: Skeletonized Flat-Face LEGION Trigger
-
Optics Ready: Yes, RMR/DeltaPoint footprint
-
Sights: Suppressor-height night sights
-
Accessory Rail: Integrated
-
SKU: 320FLUX-9-LEGION
Hybrid Weapon Platform: The Best of Both Worlds
The SIG P320 FLUX LEGION is not just a handgun—it’s a hybrid personal defense weapon designed for high-stakes performance. At the heart of this firearm is SIG SAUER’s TXG (Tungsten-Infused Polymer) grip module, which provides superior recoil control and balance compared to traditional polymer or alloy frames. When merged with the FLUX Defense Raider brace system, it becomes a rapid-deploying, PDW-style pistol that can stabilize your shots during fast engagement or rapid follow-ups.
The FLUX brace deploys with the push of a button, turning your compact pistol into a braced platform for enhanced control. It’s ideal for vehicle operations, home defense, or scenarios where quick deployment and compact storage are critical.
Barrel and Trigger Performance
With a 3.9-inch barrel, this model balances concealability with ballistic performance. The shorter barrel aids maneuverability in tight spaces, while still maintaining excellent velocity and accuracy for the 9mm round.
The skeletonized flat-face LEGION trigger offers a crisp break, minimal take-up, and a short, tactile reset—ideal for precision shooting, competition, or high-stress defense scenarios. Combined with SIG’s LEGION fire control group, this pistol delivers a consistent and responsive trigger press that’s unmatched in many striker-fired platforms.
High-Capacity Advantage
Equipped with 30-round extended magazines, the P320 FLUX LEGION takes high-volume firepower to the next level. You get nearly double the round count of a standard handgun without sacrificing mobility or compactness. This makes it a highly effective solution for home defense, vehicle carry, or tactical engagements where reload time is critical and volume of fire may be decisive.
Whether you’re defending your home or moving through a training course, those 30 rounds give you both peace of mind and a combat-ready advantage.
Legion Gray Finish & Build Quality
This model features SIG’s proprietary Legion Gray Cerakote finish, offering both corrosion resistance and a striking tactical appearance. The TXG grip module is not only tungsten-infused for weight and recoil absorption, but ergonomically sculpted for ideal hand fit, reducing fatigue and maximizing control.
Every detail, from the slide serrations to the optic cut and accessory rail, is designed for real-world performance. The look and feel of this gun scream professionalism, precision, and strength.
Optics & Sights
The P320 FLUX LEGION comes optics-ready with a slide cut that supports a wide range of micro red dot sights, including the Trijicon RMR, SIG ROMEO1 Pro, and Leupold DeltaPoint Pro. This gives users the flexibility to mount their preferred optic for faster target acquisition and improved accuracy under pressure.
To co-witness with mounted optics or provide excellent visibility when running suppressed, the pistol features suppressor-height XRAY3 night sights. These 3-dot tritium sights glow in low-light conditions and are surrounded by a high-contrast front ring for daylight visibility.
Tactical Features
Beyond raw power and modularity, the P320 FLUX LEGION includes several features that elevate its tactical value:
-
Integrated Picatinny accessory rail for lights or lasers
-
QD sling attachment points on the FLUX brace
-
Ambidextrous controls for left- or right-handed shooters
-
Modular FCU (fire control unit) allows reconfiguration or caliber swaps
-
Spring-assisted brace deployment for near-instant stabilization
This isn’t just a firearm—it’s a tactical tool designed for adaptability, defense, and domination in any environment.
Who Should Buy the P320 FLUX LEGION?
-
Tactical Operators: Law enforcement and military personnel will appreciate the speed, control, and magazine capacity.
-
Home Defenders: It’s compact enough to store securely but powerful and fast-deploying for serious home protection.
-
Firearm Enthusiasts: Those who want something unique, effective, and modular will love the FLUX system’s innovation.
-
Collectors: As one of the most advanced P320 variants to date, it’s a standout addition to any high-end firearm collection.
-
Competitors: For PCC-style divisions or tactical shooting sports, this hybrid platform provides a fast, balanced, and highly controllable setup.
Final Thoughts
The SIG SAUER P320 FLUX LEGION 9MM 3.9” 30RD PISTOL with STABILIZING BRACE – 320FLUX-9-LEGION is a true hybrid combat pistol that elevates the performance of the P320 platform into a new tactical realm. It’s more than just a pistol with a brace—it’s a carefully engineered personal defense weapon, balancing compact design with powerful performance and extended capacity.
For those who want the agility of a handgun, the firepower of a PDW, and the engineering pedigree of SIG SAUER, the FLUX LEGION is the perfect fusion. It’s built for modern threats, high-speed engagements, and the shooter who refuses to compromise.
SIG P320 FLUX LEGION 9MM pistol
SIG FLUX Raider P320 brace
30 round tactical pistol
Legion Gray PDW
SIG P320 with brace
Flux Defense Raider SIG
Best high-capacity home defense pistol
Modular PDW pistol 2025
SIG P320 TXG Legion
Tactical 9mm pistol with brace
The SIG SAUER P320 FLUX LEGION 9MM 3.9” 30RD PISTOL with STABILIZING BRACE in LEGION GRAY – model 320FLUX-9-LEGION is a revolutionary hybrid weapon platform that pushes the limits of what a handgun can do. Built on the combat-proven SIG P320 platform and upgraded with a FLUX Defense Raider brace system, this weapon blends the maneuverability of a pistol with the tactical advantages of a PDW (Personal Defense Weapon). Designed for shooters who demand high-capacity, rapid deployment, and elite-level engineering, the P320 FLUX LEGION is a powerhouse in the world of tactical pistols.
The FLUX Raider chassis, paired with SIG’s premium Legion internals and finish, transforms the traditional P320 into a modular, adaptable, and high-capacity firearm ideal for home defense, duty use, competition, or even tactical operations. Whether you’re a law enforcement professional, a high-speed low-drag enthusiast, or a home defender looking for an ultra-compact PDW-style firearm, this weapon delivers next-level control, speed, and reliability.
Key Specifications:
-
Manufacturer: SIG SAUER
-
Model: P320 FLUX LEGION
-
Caliber: 9mm Luger
-
Barrel Length: 3.9 inches
-
Action: Striker-Fired
-
Finish: Legion Gray Cerakote
-
Capacity: 30 rounds (includes high-capacity extended mags)
-
Brace System: FLUX Defense Raider w/ Spring-Assisted Deployment
-
Frame: P320 TXG Legion Full-Size Fire Control Group (FCU)
-
Trigger: Skeletonized Flat-Face LEGION Trigger
-
Optics Ready: Yes, RMR/DeltaPoint footprint
-
Sights: Suppressor-height night sights
-
Accessory Rail: Integrated
-
SKU: 320FLUX-9-LEGION
Hybrid Weapon Platform: The Best of Both Worlds
The SIG P320 FLUX LEGION is not just a handgun—it’s a hybrid personal defense weapon designed for high-stakes performance. At the heart of this firearm is SIG SAUER’s TXG (Tungsten-Infused Polymer) grip module, which provides superior recoil control and balance compared to traditional polymer or alloy frames. When merged with the FLUX Defense Raider brace system, it becomes a rapid-deploying, PDW-style pistol that can stabilize your shots during fast engagement or rapid follow-ups.
The FLUX brace deploys with the push of a button, turning your compact pistol into a braced platform for enhanced control. It’s ideal for vehicle operations, home defense, or scenarios where quick deployment and compact storage are critical.
Barrel and Trigger Performance
With a 3.9-inch barrel, this model balances concealability with ballistic performance. The shorter barrel aids maneuverability in tight spaces, while still maintaining excellent velocity and accuracy for the 9mm round.
The skeletonized flat-face LEGION trigger offers a crisp break, minimal take-up, and a short, tactile reset—ideal for precision shooting, competition, or high-stress defense scenarios. Combined with SIG’s LEGION fire control group, this pistol delivers a consistent and responsive trigger press that’s unmatched in many striker-fired platforms.
High-Capacity Advantage
Equipped with 30-round extended magazines, the P320 FLUX LEGION takes high-volume firepower to the next level. You get nearly double the round count of a standard handgun without sacrificing mobility or compactness. This makes it a highly effective solution for home defense, vehicle carry, or tactical engagements where reload time is critical and volume of fire may be decisive.
Whether you’re defending your home or moving through a training course, those 30 rounds give you both peace of mind and a combat-ready advantage.
Legion Gray Finish & Build Quality
This model features SIG’s proprietary Legion Gray Cerakote finish, offering both corrosion resistance and a striking tactical appearance. The TXG grip module is not only tungsten-infused for weight and recoil absorption, but ergonomically sculpted for ideal hand fit, reducing fatigue and maximizing control.
Every detail, from the slide serrations to the optic cut and accessory rail, is designed for real-world performance. The look and feel of this gun scream professionalism, precision, and strength.
Optics & Sights
The P320 FLUX LEGION comes optics-ready with a slide cut that supports a wide range of micro red dot sights, including the Trijicon RMR, SIG ROMEO1 Pro, and Leupold DeltaPoint Pro. This gives users the flexibility to mount their preferred optic for faster target acquisition and improved accuracy under pressure.
To co-witness with mounted optics or provide excellent visibility when running suppressed, the pistol features suppressor-height XRAY3 night sights. These 3-dot tritium sights glow in low-light conditions and are surrounded by a high-contrast front ring for daylight visibility.
Tactical Features
Beyond raw power and modularity, the P320 FLUX LEGION includes several features that elevate its tactical value:
-
Integrated Picatinny accessory rail for lights or lasers
-
QD sling attachment points on the FLUX brace
-
Ambidextrous controls for left- or right-handed shooters
-
Modular FCU (fire control unit) allows reconfiguration or caliber swaps
-
Spring-assisted brace deployment for near-instant stabilization
This isn’t just a firearm—it’s a tactical tool designed for adaptability, defense, and domination in any environment.
Who Should Buy the P320 FLUX LEGION?
-
Tactical Operators: Law enforcement and military personnel will appreciate the speed, control, and magazine capacity.
-
Home Defenders: It’s compact enough to store securely but powerful and fast-deploying for serious home protection.
-
Firearm Enthusiasts: Those who want something unique, effective, and modular will love the FLUX system’s innovation.
-
Collectors: As one of the most advanced P320 variants to date, it’s a standout addition to any high-end firearm collection.
-
Competitors: For PCC-style divisions or tactical shooting sports, this hybrid platform provides a fast, balanced, and highly controllable setup.
Final Thoughts
The SIG SAUER P320 FLUX LEGION 9MM 3.9” 30RD PISTOL with STABILIZING BRACE – 320FLUX-9-LEGION is a true hybrid combat pistol that elevates the performance of the P320 platform into a new tactical realm. It’s more than just a pistol with a brace—it’s a carefully engineered personal defense weapon, balancing compact design with powerful performance and extended capacity.
For those who want the agility of a handgun, the firepower of a PDW, and the engineering pedigree of SIG SAUER, the FLUX LEGION is the perfect fusion. It’s built for modern threats, high-speed engagements, and the shooter who refuses to compromise.
SIG P320 FLUX LEGION 9MM pistol
SIG FLUX Raider P320 brace
30 round tactical pistol
Legion Gray PDW
SIG P320 with brace
Flux Defense Raider SIG
Best high-capacity home defense pistol
Modular PDW pistol 2025
SIG P320 TXG Legion
Tactical 9mm pistol with brace
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