Dynamic Precision Titanium Guide Rod for Hi-Capa 5.1 GBB Pistol (Black) Length-(mm)_1070 Hop Up assembly

Hop Up assembly

either in real steel or Airsoft GBBs but it is still a common feature on GBBR M4s and so you might as well make sure yours is functioning properly and look amazing at the same time

Single Side Safety

Realistic CNC Aluminum Receiver (Engraved "Knight's" Logo & serial number on Receiver")

Dynamic Precision Titanium Guide Rod for Hi-Capa 5.1 GBB Pistol (Black) Length-(mm)_1070 Hop Up assemblyDynamic Precision Titanium Guide Rod for Hi Capa 5. 1 GBB Pistol (Black) Titanium 6AL4V Construction (PVD Coating Finishing) Lightweight & Hardness Smooth Recoil Cycle High Quality Upgrade to Add Extra Rigidity and Durability Suitable For Tokyo Marui Hi Capa 5. 1 Series Airsoft Gas Blow Back GBB Pistol Length: 100mm