Silverback SRS Sport Outer Barrel Length-(mm)_388 The battery compartment can be

The battery compartment can be found underneath the top portion of the rail system

On the inside the battery compartment has been lengthened allowing for larger batteries to be used which has been one of the main demands of the PDR-C users

Designed to work with night vision goggles (Not fit G&P fake night vision goggle)

Design For Direct Attach on the Rifle

Silverback SRS Sport Outer Barrel Length-(mm)_388 The battery compartment can beSilverback SRS Sport Outer Barrel Sport Version (Smooth black finish) Straight Style Barrel Suitable for Silverback SRS Series Bolt Action Airsoft Rifle (Inner barrel up to 510mm in length)