Nice gun and stock. Yes, that's the good trigger. The first Theobens had Webley barrels too. My Sirocco is older than yours. Anschutz barrel. Pre HEI. Bought it new and I still even have the bill of sale(Air Rifle Specialist) and box. My favorite airgun out of all I have. Still in excellent minty condition. Even though I used it quite a bit. I like the swell in the stock because I have very large hands. The Omega trigger is excellent. They apparently lost their deal with Webley. 1993? I think the triggers changed that year. Sadly. Cocks and fires so smooooth. Airsporter S beside it. Wears an RWS Hakko 2-7. Doesn't have the gaudy blue ribbon. Blue is just wrong on a scope. I really must make a custom steel trigger guard for it. Can't believe I never have.
Have you seen my machine work in "Metal Shop"?