Unicorn Airsoft 370mm Nitroflon Coating 6.03mm Ultimate Precision Barrel For GBB

370mm UNICORN Nitroflon Coating 6.03MM Ultimate Precision Inner Barrel For GBB
Fits for 12"~14.5" (Approx.)  GBB Carbine style.
1. Material: Brass with Nitroflon Coating
2. GBB specification

From March 2026, All Unicorn inner barrels will NOT include hop-up bucking. 

For VFC KAC SR16 GBB. (Slightly longer than CQB outer barrel)
For VFC Colt M727 GBB.
For GHK M4 GBB 14.5" (Need new GHK HOP-UP set for GBB SPEC.)
For WE M4A1 14.5" GBB Setup.
For MARUI M4A1 MWS GBB 14.5" Setup.
For 12" to 14.5"(Approx.) GBB pistol.
Still compatible with other AIRSOFT model which with GBB HOP-UP SPEC.