Pro-Arms CNC Aluminum Threaded Outer Barrel for SIG Sauer ProForce P320 M17 MHS Airsoft GBB Pistols

Pro-Arms CNC Aluminum Threaded Outer Barrel for SIG Sauer ProForce P320 M17 MHS Airsoft GBB Pistols

Upgrade your SIG Sauer ProForce P320 M17 MHS airsoft pistol with the Pro-Arms CNC Aluminum Threaded Outer Barrel, a precision-engineered component designed to enhance durability, aesthetics, and muzzle accessory compatibility. Built for players and technicians who demand reliable performance and clean fitment, this threaded outer barrel is a drop-in upgrade that transforms your M17 into a suppressor-ready, mission-capable sidearm.

Manufactured from high-strength CNC-machined aluminum alloy, this Pro-Arms outer barrel delivers a significant improvement over the factory unit without adding unnecessary weight. Whether you’re building a realistic training replica or a competition-ready sidearm, this upgrade provides the perfect balance of strength, precision, and performance.

Precision CNC Construction for Reliable Performance

At the core of this upgrade is precision CNC machining, ensuring tight tolerances and consistent dimensions throughout the barrel. This level of accuracy guarantees smooth interaction with the slide, hop-up unit, and inner barrel, resulting in reliable cycling and consistent alignment shot after shot.

The aluminum alloy construction offers excellent rigidity while remaining lightweight, preventing excess stress on your gas blowback system. This makes it an ideal upgrade for both stock pistols and enhanced builds running higher-performance recoil springs or upgraded internals.

Suppressor-Ready with 14mm Negative Threads

One of the standout features of this Pro-Arms outer barrel is its 14mm negative (CCW) threading, the industry standard for airsoft muzzle devices. This allows you to easily attach:

• Mock suppressors

• Tracer units

• Threaded compensators

• Barrel extensions

Whether you’re setting up a night game tracer build or a mil-sim-accurate suppressed loadout, this threaded design gives you full customization flexibility without the need for adapters.

Durable Matte Black Finish

Finished in a weather-resistant matte black coating, the Pro-Arms threaded outer barrel blends seamlessly with the factory M17 slide while adding a subtle, premium appearance. The finish is designed to resist wear, corrosion, and handling marks, making it suitable for outdoor play, training environments, and long-term use.

This coating not only enhances durability but also reduces glare, maintaining a professional and tactical look consistent with the M17 platform.

Drop-In Installation – No Modifications Required

Designed specifically for SIG Sauer ProForce P320 M17 MHS gas blowback pistols, this outer barrel installs directly into your pistol without the need for filing, fitting, or permanent modification. Simply remove your factory barrel and replace it with the Pro-Arms unit to instantly gain threaded functionality and improved durability.

This makes it an excellent upgrade for both beginners looking for easy enhancements and experienced technicians building custom M17 setups.

Ideal for Tactical Builds and Performance Upgrades

The Pro-Arms CNC Aluminum Threaded Outer Barrel is perfect for players who want:

• A suppressor-ready SIG M17 platform

• Improved durability over stock components

• A clean, professional aesthetic upgrade

• Reliable compatibility with aftermarket muzzle devices

Whether you’re running a training replica, mil-sim loadout, or competition sidearm, this barrel upgrade delivers practical benefits without compromising reliability.

Why Choose Pro-Arms?

Pro-Arms is known for producing precision airsoft upgrade components that meet the expectations of serious players and technicians. Their focus on CNC machining, tight tolerances, and direct-fit designs ensures that each part performs as intended straight out of the box.

If you’re looking to unlock the full potential of your SIG Sauer ProForce M17, the Pro-Arms CNC Aluminum Threaded Outer Barrel is a smart, future-proof upgrade that combines performance, customization, and reliability into one essential component.