New in package Geissele Super Gas Block stainless with Geissele ball cap, $35 shipped or $27 for the GB and $10 for the hat.
Possible trades:
Geissele MK14 rail 13" (I’d front some cash) - one of the ones with set screws
Magpul K2 grip
Magpul M-Lok offset light mount (scout mount)
Magpul M-Lok Type 2 covers in FDE or grey
Midwest Industries QD30SMH 30MM High QD Scope Mount with 1.4-in Offset
Aero Precision 30mm SPR mount