VFC EVO AR GBB System - Improved New Bolt Carrier Structure & New HOP-UP Adjust Design & New HOP Chamber Quick Detachment Design & New Design V4 Gas Magazine
The newly designed steel bolt carrier features integrated gas relief ports to effectively regulate gas output and enhance overall durability, resulting in more consistent shooting performance.
Once the bolt E-clip is removed, the gas nozzle can be quickly detached by rotating the upper bolt slider—greatly improving maintenance efficiency.
A newly designed steel TDC Hop-Up unit that is reliable and designed for quick detachment—no need to disassemble the outer barrel or handguard, also can be precisely and quickly adjusted using the VFC EVO AR GBB HOP Adjust Tool Set.
The HOP UP adjustment has been relocated to the chamber base, offering clearly defined settings with secure indexing, ensuring improved trajectory stability.
The upgraded V4 magazine features precisely aligned notches and mag catch slots on both the magazine and receiver, ensuring reliable gas output and consistent performance.
KAC L403A1 GBBR FEATURES
Fore-end
Steel CNC Quick Detach Coupling Flash Hiders
KAC Authorized Marking Front Sight
Authorized Marking Realistic Disassembly URX 6 Handguard
13.7” Unique Dimpled One-piece Aluminum Alloy Heavy Outer Barrel
Realistic Dummy Gas Block
Stainless Steel Dummy Gas Tube
Receiver
Full License Authorized Marking Upper and Lower Receiver
Ambidextrous Magazine Catch
New Style Steel Ambidextrous Bolt Catch (Surface Coting with Molybdenum Disulfide)
New Style Steel Ambidextrous Fire Selector
Steel Drop-in Two-stage Match Trigger
Trigger Guard with Anti-slip Texture
Steel Dust Cover
Steel Dummy Forward Assist Knob
Standard Issue Type Marking Rear Sight
Ambidextrous Charging Handle & Steel Charging Handle Hook
Standard Issue Style Grip
QD Receiver End Plate
Stock
B5 Style Buttstock
LMT Style 6-section Stock Tube
Buttstock Built in Steel QD Sling Mount
F.C.S.
KAC E3 Enhanced Style Steel Dummy Bolt Carrier (With pressure relief ports)
Steel bolt cam pin
Steel Disconnected Set
"Non-cut lever" Steel Hammer Set
Improved New Design Firing Pin Parts
New Setting Buffer Spring with High-Speed Weight Increase Buffer Unit (Heavy Buffer)
Steel Buffer Stop
Magazine
New V4 30Rd Gas Magazine(Tan)
