12ga Gemini Choke Mobil Extended Colour Coded Band *Steel Compatible *Choose Size

Gemini Choke Mobil Extended - Steel Rated Across All Restrictions

Gauge: 12 Gauge

Fits: Franchi, Stoeger 2000/3000, early model Beretta & Benelli, Ranger M5, Dickinson, and most Turkish-made shotguns using the Mobil choke system.

Choose from:

• Improved Cylinder (IC) – SKU: 274549
• Modified (M) – SKU: 274548
• Improved Modified (IM) – SKU: 274577
• Skeet (SK) – SKU: 274550
• Light Full (LF) – SKU: 274570

Made for Performance and Precision

Gemini’s Mobil extended choke tubes are manufactured in Italy from 42CrMo4 alloy steel, renowned for its excellent balance of strength, durability, and cost-efficiency. All machining is carried out on high-precision CNC equipment, with rigorous quality checks throughout the production process for perfect tolerances and flawless function.

Advanced Finishes

Gemini chokes undergo an elite finishing process for both performance and longevity:

• Nickel Plating (Niplate HV 500) – Protects internal surfaces from oxidation and ensures smooth, low-friction contact
• Chroming / Burnishing – Enhances corrosion resistance and polish on internal/external surfaces
• DLC (Diamond Like Carbon) Coating – Ultra-hard (2500–3000 Hv) "amorphous diamond" layer gives unmatched durability, abrasion resistance, and anti-adhesion properties

Built with Top-Grade Materials

• 42CrMo4 Alloy Steel (used in ~80% of Gemini chokes):
• Hardened to 800–900 N/mm² and normalized for microstructural balance. Coated with Nickel or Nickel+DLC depending on model.
• 17-4 PH Stainless Steel (used in thin-walled chokes):
• Hardened to 1300–1450 N/mm² after precipitation hardening—ideal for high-load and steel-shot use. Finished uncoated with a bleached surface.
• Ti 6Al-4V (Grade 5 Titanium):
• Used for ultra-lightweight, high-performance shooting chokes. These are DLC-coated and priced higher due to the elite material quality.

Certified and Clearly Marked

All Gemini chokes are laser-marked with “Steel Shot” or “Only Lead”, meeting the strict testing standards of Banco Nazionale di Prova in Italy.

Care Instructions

• Always ensure the firearm is unloaded before fitting or removing the choke
• Inspect chokes before use—check for thread or surface damage
• Tighten fully to prevent gas leakage
• For storage or extended periods, clean and apply high-temp grease before reinstalling

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.

(GeminiEXTst)