Xcortech 3500 Chronograph w/ Remote Display KJ Works (KJW) Detachable rear sight

Detachable rear sight

Gearbox: Ver 2 Full Metal

-Set the motor height

Step 3: see 2 grooves on the inside of the ring cap

Xcortech 3500 Chronograph w/ Remote Display KJ Works (KJW) Detachable rear sightXcortech has a reputation for making the most accurate and reliable chronographs in Airsoft. Their newest model is the X3500, which is an upgrade to the older X3200 model. The X3500 can be rotated and comes with a folding display unit which can be mounted on a tactical rail. The X3500 communicates to the display with a wireless connection. The X3500 can be used to chrono many different BB sizes, such as 38mm, 4. 5mm, 6mm, 9mm, and 18mm. X3500 Product