6.04 Crazy Jet Inner Barrel for GBB 245mm

6.04 Crazy Jet Inner Barrel for GBB 220mm

6.02 Inner Barrel for GBB 410mm

6.03 GBB Inner Barrel 210mm

6.03 GBB Inner Barrel 117mm

6.04 Crazy Jet Inner Barrel for GBB 250mm

6.04 Crazy Jet Inner Barrel for KWA M4 GBB 440mm

6.04 Crazy Jet Inner Barrel for GBB 410mm

6.02 Inner Barrel for GBB 290mm