FOR AIRSOFT USE ONLY!For VFC AR/M4 GBB series. (M4, M16, M733, BCM, MK18, URGI, SR-16, V2 & V3 etc.)
For GHK AR/M4 GBB series. (M4, MK18, URGI, DD PDW, For V3 system etc.)Compatible with both GHK AR GBB system (install without included spacer) and VFC AR GBB system (install with included spacer).Compatible with Marksman K1A GBB (VFC AR GBB HOP-UP system).NOT compatible with VFC/Umarex HK416D /HK416A5 GBB model.Required to DIY ability.※ The inner barrel and HOP-UP bucking are NOT included, which need to be purchased separately.
※ It is recommended with "4UANTUM Friction Pro" HOP-UP Bucking. (GBB SPEC.)
※ It is NOT recommended use with other brands of AIRSOFT AR /M4 GBB model.
※ Compatible BB weight limit and shooting performance still depends on different settings, gas effect or other variables.
----------Installation references:
For GHK M4 GBB series:
Compatible with GHK M4 V3 GBB sereies. (V3 feed nozzle)
NOT suitable for GHK M4 V2 GBB series (V2 feed nozzle SPEC.)
NOT suitable for RA-TECH NPAS nazzle/bolt group for GHK M4 V2 GBB (V2 feed nozzle SPEC.)
>>Please replace GHK M4 V2 nozzle with the V3 nozzle/bolt group, which can be used with the Magnus Pro AR HOP-UP set.
>>RA-TECH NPAS nozzle set for GHK M4 V3 GBB system had been released.
For VFC M4 GBB series:
Compatible with VFC M4 V2 & V3 GBB system.
Compatible with VFC T91 GBB.
Compatible with VFC M4 GBB with Knob adjustable HOP-UP set (M733, XM177E2, M16A1, M16A2, M727 GBB series).
Compatible with VFC M4 GBB with Guide-HOP adjustable HOP-UP set (BCM MCMR, BCM MK2, MK18, URGI, SR-16E3 GBB series.)
>>The installation of the Guide-HOP model requires the removal of the front quick-adjustment system (dummy gas tube, connecting rod, etc.), and the Guide-HOP function will be cancelled.
NOT compatible with VFC/Umarex HK416 GBB series.
(NOT compatible with VFC HK416 Gen2 & Gen3)
(NOT compatible with VFC HK416D, HK416A5, M27 IAR model)
>>Users can purchase the Z-parts HK416D outer barrel and gas block series products (reverting to the M4 model outer barrel/chamber design) to correspond to the Magnus Pro AR HOP-UP set.
>>Please note that for the VFC HK416A5 model, the appearance of Z-parts HK416D shape products does not exactly correspond to HK416A5, please refer to Z-parts website.
NOT compatible:
Japan specification AIRSOFT GBB inner barrel/precision inner barrel products may not be applicable or require additional processing before installation due to different design specifications and slots.
Including PDI, KM, Laylax inner barrel products, are NOT applicable.
----------Specifications:● Product Brand : 4UAD (Taiwan)● MADE IN TAIWAN● Material : Aluminum alloyContent :● HOP-UP Chamber Set x1"4UANTUM Magnus Pro AR" TDC HOP-UP Chamber SetPrecision machined from solid 6061 aluminum billet, The MagnusPro Hop-Up chamber features a true vertical TDC (Top-Dead-Center) movement. Which means regardless of your hop-up setting, the pressure point remains in the same position for consistent results. Revolutionary self-centering tri-lug locking is the most effective design at not only centering the inner barrel but also holding it firmly in place! CNC bucking sleeve precisely centers the orientation of hop up bucks and keep it in place for lasting accuracy. The adjustment dial is easily access through the ejection port & can be adjusted with any pointed tool without the need for disassembly, allowing efficient & streamlined hop-up tuning. ● Center lock system : patented inner barrel locking system.● HOP-UP bucking shroud : centered bucking and stabilize output velocity.● Quick HOP-UP adjustment : adjust HOP-UP through the wheel rear the chamber with a 1.5mm allen key or similar pointed object.● True TDC articuiation : machined press ring parts to minimizing wobble and giving you stable contact. (Comes with two nub /press ring options)
