Modify 6.03 Steel Precision Inner barrel 430 MM VSR GBB

It is compatible with most of VSR 10 hop up bucking on the market, and the Modify X-range hop up rubber works the best with it.

• Enlarge window works perfect with R hop, Modify X-Range and Predator hop up bucking.
• CNC machined 304 Stanless steel.
• Extremely Straight with Hihg Rigidity and Accuracy.

How do we check the quality and accuracy of the 6.03 precision inner barrel? << Let's see it!

The mount of the 6.03mm precision barrel requires the use of high quality BB pellets that have the diameter of 5.95 (+/- 0.01)mm.