Skip to content
Notice: This website is intended for adults 18+ and over. We do not sell to minors. Find the best price by supporting and shopping at an authorized Echo1 dealer. All Airsoft guns ship with orange tips. Airsoft guns, knives, tools, and replica knives are shipped with ADULT SIGNATURE REQUIRED.
Notice: This website is intended for adults 18+ and over. We do not sell to minors. Find the best price by supporting and shopping at an authorized Echo1 dealer. All Airsoft guns ship with orange tips. Airsoft guns, knives, tools, and replica knives are shipped with ADULT SIGNATURE REQUIRED.

Echo1 ER25 Complete Gearbox

Original price $160.00 - Original price $160.00
Original price
$160.00
$160.00 - $160.00
Current price $160.00

Please note that this gearbox does NOT come with a MOSFET and is wired for a standard connection. This is a complete factory replacement gearbox for the Echo1 ER25K (JP-28).

This uses an elongated cylinder head and proprietary length nozzle, standard AEG pistol rack (with metal teeth), and a standard Ver. 2 gear set, making it more compatible to normal Version 2 (M4) gearbox upgrades. Other brand SR-25 style guns might use a Version 2.5 gearbox with an elongated cylinder and piston and proprietary gearset instead.