12G Gemini Choke Invector Plus Extended *Steel Compatible *Choose Size

Gemini Invector Plus Extended Chokes – Steel Rated Across All Restrictions

Fits: New model Browning and Miroku shotguns with Invector Plus threading.

Choose from:

• Full (1/1) – Steel Compatible (Code: 274542)
• Skeet (SK) – Steel Compatible (Code: 274543)

Made for Performance and Built to Last

Gemini chokes are precision-engineered in Italy from 42CrMo4 alloy steel using advanced CNC machinery. Every choke undergoes strict calibration and quality control throughout production to ensure reliable performance and long-lasting durability.

Advanced Finishes for Long-Term Reliability

Gemini’s signature multi-step finishing process ensures smooth operation, minimal fouling, and superior protection:

• Grinding + Lapping – Enhances precision and smooth fit.
• Nickel Plating (Niplate HV500) – Interior coating prevents corrosion and reduces friction.
• Chroming/Burnishing – Strengthens both internal and external surfaces.
• DLC Coating (Diamond-Like Carbon) – Provides extreme hardness (2500–3000 HV), excellent wear resistance, low friction, and non-reflective finish.

High-Grade Materials for Every Shooting Application

• 42CrMo4 Alloy Steel – Strong, heat-treated, and used in most Gemini chokes.
• 17-4 PH Stainless Steel – Used in thin-walled designs; hardened for strength without coatings.
• Grade 5 Titanium (Ti 6Al-4V) – Lightweight and DLC-coated for competitive shooters seeking muzzle-light setups.

Designed for Steel Shot Use

All chokes are laser-marked to indicate suitability for steel or lead shot and are manufactured in compliance with Banco Nazionale di Prova standards.

Care Instructions

• Ensure firearm is unloaded before fitting or removing chokes.
• Check for any damage to threads or internal/external surfaces.
• Tighten securely to avoid gas leakage.
• Regularly remove, clean, and lubricate with a high-temperature grease to prevent seizing.

We are NZ's largest firearms dealers. We have been selling, importing, exporting, manufacturing, customising and repairing firearms and accessories since 1978. We have the largest range of guns, ammo and accessories online in New Zealand.

Please call our shop for more information on +64 3 379-8888 in Christchurch, New Zealand.

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