Eric Glesser referred to this as a lightweight Sage 5 and said they’re “making these compression locks in lightweight models.” The Chaparral Gray FRN isn’t called lightweight, and it weighs only 0.4 oz less than the CF/G-10 version. The Para 3 LW weighs 1 oz less than the conventional version.
Steel liners are used in the Chaparral FRN, the current Sage 5, and the original Para 3. The Para 3 Lightweight is linerless, and I bet the Sage 5 Lightweight will be, too.
While I agree the FRN surface pattern of the LW Sage is similar to that of the Chaparral FRN, I think Eric is implying the redesign of the Sage will yield similar weight reduction to that seen with the P3, with the “streamlined” compression lock and linerless construction.