T-N.T. TR-HOP Complete Kit for Marui MK-23 ( S+ Inner Barrel )

T-N.T. APS-X HOP-UP System to elevate Airsoft BB gun's muzzle velocity and trajectory stability but still struggling to find a suitable upgrade HOP kits...Just simple install steps

In the case does not raise the kinetic energy , but effective range can improve about 40 % to 60%!!

Want to turns your airsoft guns as the best weapon on the field?
『T-N.T. APS-X HOP-UP System』is your best choice!!

• All products are recommended to have DIY ability to make fine adjustments and modifications.
• Before the modify, recommended to check and exclude the original issues to achieve the best results, or commissioned by the store to modified.
• Replacement of kits does not mean that can solve all the original parts of the issues, sometimes still have to modify the other components to achieve the best performance.