Nineball Barrel 182mm/6.03mm Tightbore MP7A1/Scorpion MOD M AEP

Nine Ball 182mm / 6.03mm Stainless Steel Tightbore Inner Barrel (MP7A1 / Scorpion MOD M)

Unlock the true accuracy and velocity potential of your compact electric submachine gun with the Nine Ball Tightbore Inner Barrel. Engineered by LayLax in Japan, this high-performance stainless steel barrel applies the legendary manufacturing standards of the world-renowned Prometheus EG series directly to the AEP platform.

Featuring a tight 6.03mm inner diameter machined to a strict 0.01mm tolerance, this barrel creates a much tighter air seal around your BBs. By minimizing the air loss that typically occurs in factory barrels, it forces the maximum amount of air pressure directly behind the projectile. This results in an immediate increase in muzzle velocity, flatter trajectories, and tighter shot groupings at long range.

Key Features

• Extreme Accuracy Tolerance: Engineered with an ultra-strict 0.01mm manufacturing variance for maximum shot-to-shot consistency.

• Tighter 6.03mm Bore: Minimizes internal air bypass, reclaiming valuable FPS and improving overall gas/air efficiency.

• Premium Stainless Steel (SUS) Construction: Offers incredible rigidity and resistance to corrosion, ensuring the inner bore stays pristine over millions of cycles.

• Prometheus Technology: Built using the same award-winning inner barrel engineering found in top-tier full-size AEG builds.

Specifications

• Brand: Nine Ball (LayLax)

• Material: Stainless Steel (SUS)

• Barrel Length: 182mm

• Inner Bore Diameter: 6.03mm

Compatibility

Designed specifically for Tokyo Marui AEP (Automatic Electric Pistol/Compact SMG) platforms:

• Tokyo Marui MP7A1 AEP

• Tokyo Marui Scorpion MOD M AEP

• Can also be used in custom configurations requiring a 182mm AEP-cut inner barrel.

Tech Tip: Tightbore barrels have tighter clearances than standard factory barrels. To maintain peak performance, prevent jams, and protect the polished inner bore, always use high-quality, precision-grade BBs and clean the barrel regularly using a lint-free cloth and a light drop of isopropyl alcohol.