Vfc hk416a5 ztw Outer barrel was replaced with a regular 416 barrel and a noveske style gas block Internal upgrades BTC Spectre Mk.II SHS 13:1 Gear Set VFC Solid Steel Bushings SHS Orange Lightened Piston Prometheus POM Piston Head Piston Head X-Ring Ace1Arms Steel Cylinder Ace1Arms CNC Aluminum Cylinder Head Sorbo Pad Guarder Tappet Plate Enhanced Tappet Plate Spring G&G 17000 RPM Neodymium Magnet Motor with CNC Pinion Gear PDI 395mm Barrel RHop Installation on PDI Barrel Cut and Crown Service for PDI Barrel MAXX CNC Hop Up Unit ME-PRO Modify Soft Flat Hop Rubber Externals will include real magpul ctr stock Tan kac iron sights Airsoft artisan 6.2 inch socom suppressor and war comp flash hider Hao hk416 Smr rail Original hk416a5 rail Original hk416a5 stock If you’d like to purchase any of the accessories it can be discussed Sale only, no trades Located in Calgary shipping extra