JBU 30+FPS Increaser kit for GBB, 5.9inch Barrel Extension
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SKU: SDJB20
JBU 5.9" FPS Increaser kit. Includes 6 inch barrel extension, inner barrel and pistol barrel adapter. Needs JBU upgraded tight bore inner barrels, SDJA69-SDJA72.
FPS: 30+ w/ 0.20g
Material: High Grade Aluminum
Dimension: 5.9in Length x 7/8in Diameter
Finish: Matte Black
Fits: WE, TSD, Caspian, TM
MSRP: $45.00
