Precision Barrel 6.03mm Ultimate Precision Inner Barrel Set for GBB (265 mm) 10.5″ Setup AR /M4 /HK416 /MK18 /265mm

For GBB SPEC. HOP-UP.

For AR /MK18 /HK416 series 10.5″ model.
For 10.5″ (Approx.) barrel GBB carbine style.
For other AIRSOFT model which with GBB HOP-UP SPEC.

Specification :
● Product Brand : UNICORN AIRSOFT (Taiwan).
● Material : Copper
● Ø6.03mm, 265 mm length

Contents :
Inner barrel x1

Features :
● Inner barrel made of copper, with a Nitroflon (PTFE) electroplated surface.