Laylax Nine Ball Tight Bore Inner Barrel for SIG Sauer ProForce M17 MHS Airsoft GBB Pistol (Model: 6.00mm / 105mm)

Laylax Nine Ball 6.00mm Tight Bore Inner Barrel for SIG Sauer ProForce M17 MHS GBB Airsoft Pistol (105mm)

When accuracy matters and consistency separates good shots from great ones, upgrading your inner barrel is one of the most effective performance improvements you can make to a gas blowback pistol. The Laylax Nine Ball Tight Bore Inner Barrel (6.00mm / 105mm) is a premium-grade upgrade specifically designed to extract maximum precision and efficiency from your SIG Sauer ProForce M17 MHS airsoft GBB pistol.

Manufactured by Laylax under the renowned Nine Ball brand, this inner barrel reflects the same meticulous engineering standards that have made Nine Ball one of the most trusted names in high-end airsoft upgrades worldwide. Known for their uncompromising quality control and competition-level performance parts, Nine Ball barrels are engineered to outperform stock components in every measurable way.

Precision Stainless Steel Construction

At the core of this upgrade is high-quality stainless steel, chosen for its strength, dimensional stability, and resistance to wear. Unlike brass barrels that can deform or degrade over time, stainless steel maintains its internal tolerances even after extended use. This ensures long-term consistency, especially important for players who train frequently or rely on their pistol as a primary or secondary weapon.

The 6.00mm tight bore diameter provides a noticeably improved air seal compared to standard inner barrels. By reducing excess space around the BB, more of the gas energy is converted into forward momentum, resulting in tighter groupings, improved shot-to-shot consistency, and more predictable trajectories.

Precision Cut & Crowned for Accuracy

Every Laylax Nine Ball inner barrel is precision cut and expertly crowned, a critical detail that directly impacts accuracy. The crowned muzzle ensures that the BB exits the barrel cleanly and evenly, minimizing turbulence and preventing irregular spin that can throw shots off target.

This attention to detail is what separates premium inner barrels from mass-produced alternatives. The result is cleaner hop-up engagement, more stable BB flight, and improved effective range, especially when paired with high-quality BBs and a properly tuned hop-up system.

Optimized Length for the ProForce M17

With a length of 105mm, this barrel is optimized for the SIG Sauer ProForce M17 platform. It installs seamlessly as a direct replacement for the factory inner barrel, requiring no modification and no specialized tools. Whether you’re upgrading a stock pistol or refining an already tuned build, this barrel integrates cleanly into the existing setup.

The improved internal finish also reduces friction, helping gas efficiency and consistency—an important advantage during extended skirmishes or colder conditions where gas performance can drop.

Corrosion Resistant & Built to Last

Airsoft pistols are exposed to moisture, dirt, and temperature changes, especially during outdoor play. Thanks to its corrosion-resistant stainless steel construction, the Laylax Nine Ball inner barrel maintains peak performance even in challenging environments. This makes it a reliable upgrade for both indoor CQB players and outdoor field operators alike.

Why Choose Nine Ball?

Nine Ball parts are trusted by competitive players, techs, and enthusiasts because they deliver measurable performance gains without sacrificing reliability. Each barrel is machined to exacting standards, ensuring consistent internal dimensions and flawless compatibility.

While originally developed with Tokyo Marui-based designs in mind, Nine Ball’s engineering philosophy carries over perfectly to the SIG Sauer ProForce M17, delivering a clear upgrade over stock barrels with proven results on the field.

Ideal For:

• Players seeking improved pistol accuracy

• Competitive shooters and CQB specialists

• ProForce M17 owners upgrading core internals

• Airsoft techs building high-performance GBB pistols

If you want tighter groupings, cleaner shots, and confidence in every trigger pull, the Laylax Nine Ball 6.00mm Tight Bore Inner Barrel is one of the most effective and reliable upgrades you can make to your SIG Sauer ProForce M17 airsoft pistol.