poichè non ho la competenza tecnica per esprimere la mia opinione riguardo la resistenza ai nostri bb dei miei nuovi oakley radar mi limito a riportare quanto scritto all'interno della confezione:

this oakley optical gear surpasses ansi z87.1 industrial standards for visual clarity and protection against high-velocity and high-mass impact. plutonite lens material blocks 100% of all uva, uvb, uvc and harmful blue light up to 400nm. patented hdo optics maintains critical clarity at all angles of view, even at the sides of raked-back lens contours that maximize peripheral vision and protection.
... e ancora ...
caution no eyewear can protect the wearer from all hazards. although this eyewear exceeds ansi z87.1 industrial standards for impact resistance, the product will not protect against all forms of impact, nor will it protect against all chemical splashes.

ora poichè mi interessa non poco se questi occhialucci pagati non poco (per la cronaca 170 euro presso un'ottica di milano) mi proteggeranno o no da un bb sparato ad un joule che dovesse colpirmi al volto ho svolto una piccola ricerca su internet riguardo al sopra citato "ansi z87.1 industrial standard for impact resistence" e, principalmente a questa pagina, ho trovato quanto segue:

although it has taken several years, the american national standards institute (ansi) has approved the new “occupational and educational personal eye and face protective devices” standard – ansi z87.1-2003.
...
lens tests
eye protectors are now classified as either basic or high impact. this classification is based on performance. they are tested as complete products, as they are offered to the user. no distinction is made between removable and non-removable lenses. basic impact protectors must be capable of passing a 1" drop ball test. high impact protectors must comply with high mass and high velocity impact criteria. these impact requirements apply to prescription spectacles as well. the penetration test applies to plano plastic lenses, whether they are basic or high impact.
non ci sono dati purtroppo ma quanto riportato sembra suggerire che i radar non dovrebbero avere problemi a sopportare i colpi delle nostre asg, tanto è vero che i da voi citati m-frame hanno esattamente lo stesso tipo di certificazione.

sto per caso trascurando qualcosa?