yes, thick long OEM CZUB brass grips.
gun without magazine is 1420 grams (50 ounces).
adjustable sight was mounted at least 5000 rounds ago (probably more), still standing strong.
i ended using brass grips not because i want more weight, anybody can solve that by correct grip.
for me, gun centre of gravity with stock grips was always at the muzzle no matter how strong grip is, i felt unconfortable.
with brass grips it feels natural, gun sits in hard more like stock cz 75.