Видео с ютуба Fostech Echo Mod

It's Just a Fun Gun: The Fostech FLITE Thunderchief 4.5

It's Just a Fun Gun: The Fostech FLITE Thunderchief 4.5" Mod 2 Pistol with Echo AR II.
IT’S ALIVE! (FosTech Echo AR2 in a AR9. Testing bolt mods)

IT’S ALIVE! (FosTech Echo AR2 in a AR9. Testing bolt mods)
FosTech Echo ARII Binary Trigger in a Honey Badger AR Pistol with the Tail Hook Mod 2 Brace!

FosTech Echo ARII Binary Trigger in a Honey Badger AR Pistol with the Tail Hook Mod 2 Brace!
Fostech ECHO Spring Mod to Improve Trigger Pull Weight: Video Review and Field Test

Fostech ECHO Spring Mod to Improve Trigger Pull Weight: Video Review and Field Test
PSA Hybrid BCG mod to work with Fostech Echo trigger- Part 1

PSA Hybrid BCG mod to work with Fostech Echo trigger- Part 1