The Raven Evolution SR24 is an airsoft sniper rifle based on the M24/R700 design that Magic Knives reviews. It has a steel trigger system to make it last longer and it is a spring bolt action design with the outer barrel and receiver made of metal whilst the stock is made of polymer. It should be available at many retailers.
Brace yourselves as Raven Evolution, an airsoft company based in Canada, announce three series of airsoft guns, giving you a good number of options. Called ORE, NEO & BOLT Series, these lines are a follow-up of the ELITE Series they announced in December 2020. Check them out and take your pick: