Ported +20 mm Gemini choke 12 Gauge Optima Greystone - Bore 18,20 model for hunting and clay shooting shotguns.
|Material||42CrMo4 Alloy Steel (N/mm2 800 - 900)|
|Surface Treatments||Nickel + DLC ( Diamond Like Carbon )|
Our enthusiastic approach that goes into research and development, and the many years of being suppliers to many of the larger firearms manufacturers in Italy, allow us to offer a product that well exceeds our clients expectations.
Made out of 42 crmo4 steel using modern cnc machines, our chokes are subject to very careful quality control at every stage of manufacture.
The final stage which includes grinding, polishing and lapping (after being coated with niplate; - nickel hv 500 or niplate + DLC - Diamond Lite Carbon) results in the perfect finish we take great pride in.
All of our chokes are laser etched with either “steel shot” or “lead shot” in accordance to proof house regulations.
Ensure firearm is unloaded before fitting chokes, check chokes for any damage to internal and external surfaces and thread. Do not attempt to use a damaged choke. Always make sure choke is screwed in tight to ensure no gas leakage between barrel and choke.
Routine maintenance should include cleaning after removing and refitting using a good quality high temperature grease.