Methinks he is insinuating they are a Relum comparable type of device
P.S I have a 302, 303 and 310....I think they are solid, workmanlike bits of kit....especially the 302, which is a pretty hefty bugga....clever cocking link keeps the lines clean, not bad trigger.....only downside is the love or hate safety....but at least it is highly visible and simple to use, unlike a lot of ones found on "better" guns.....