Matt barrel finish: more than just an aesthetical solution, the matt barrel gives absolute anti-glare performance and helps you keep your eyes away from distractions and constantly on your targets. OCHP: With a production begun in 1526, now accounting for more than 500.000 barrels a year, Beretta is a world leader in technological research applied to ballistics. The Optimabore HP technology, combined with Steelium, provides excellent accuracy and pattern quality with any kind of shots. Steelium: the production technology of the Beretta barrels, making the special tri-alloy steel become an outstanding ballistic jewel, thanks to a manufacturing process that is just as unique. Gundrilling, cold hammer forging special vacuum relieving give steel the ideal mechanical characteristic for superior ballistic performance.