Unicorn GBB 410mm 6.03mm Inner Barrel

**Please note that the manufacturer, Unicorn, no longer provides a hop-up bucking with their inner barrels due to increased material/production costs. All Unicorn inner barrels will ONLY include the inner barrel. Buckings sold separately.**

UNICORN Nitroflon Coating 6.03MM Ultimate Precision Inner Barrel For GBB

Common size for:

for M4-16″ and fit for TYPE89 or SR-25

Specs:

outer: 8.55MM

inner: 6.03MM

material: Brass electroplating nitroflon coating