Nozzle Measurement

If you can’t find a nozzle specific to your replica, you can determine the correct nozzle by measuring the two distances indicated below and adding them together. Then choose a nozzle from the list that is 0 to 0.5mm longer than your measurement.

Original Engine

With your original engine and nozzle still in the gearbox, measure the distance the nozzle extends from the front of the gearbox.

Wolverine Engine

With your Wolverine Airsoft engine in the gearbox, measure the distance from the front of the engine to the front of the gearbox and add it to your first measurement.
NozzleLength(mm)
CA LMG17.75
M24918.75
M419.25
AK19.65
KA FAL21.5
G3624.5
CA SCAR L25.75
PTS Masada27.5
VFC XCR29
A&K Masada33.32
GG SR2535.05
VFC SCAR H36
KA SIG 55647.4

AEG Conversion Compatibility Guide

Use the chart below to determine what products you need to install an INFERNO or REAPER HPA engine into most airsoft replicas.

*Note: When purchasing the Spartan FCU, no wiring harness or trigger board is necessary

ReplicaKit to buyNozzleElectronicsWire HarnessTrigger Board
A&K MasadaInferno Gen 2 V2 (M4) Premium or Spartan kit + A&K Masada nozzleA&K MasadaPremium/SpartanV3 12″ Wire HarnessV2 Trigger Board
A&K MK46INFERNO Gen 2 M249 Premium kitM4PremiumM249 wire harnessM249 wire harness
A&K M60INFERNO Gen 2 M249 Premium kit + A&K Masada NozzleA&K MasadaPremiumM249 wire harnessM249 wire harness
A&K PKMINFERNO Gen 2 M249 Premium kit + A&K Masada NozzleA&K MasadaPremiumM249 wire harnessM249 wire harness
AK (LCT Spec)INFERNO Gen 2 V3 (AK) Premium kitM4PremiumV3 12″ Wire HarnessV3 Trigger Board
AK (TM Spec)INFERNO Gen 2 V3 (AK) Premium kitAKPremiumV3 12″ Wire HarnessV3 Trigger Board
Ares Stoner LMGINFERNO Gen 2 M249 Premium kit + CA LMG nozzleLMGPremiumM249 wire harnessM249 wire harness
Ares M110INFERNO Gen 2 V2 (M4) premium kit + Universal Wiring KitM4PremiumV2 14″ Wire harnessUniversal Wiring Kit
APS UARINFERNO Gen 2 V3 (AK) Premium KitAKPremiumV3 12″ Wire harnessV3 Trigger Board
ASG 805 BRENINFERNO Gen 2 V3 (AK) Premium kit + A&K Masada NozzleA&K MasadaPremiumV3 12″ Wire HarnessV3 Trigger Board
Classic Army Stoner LMGINFERNO Gen 2 M249 Premium kit + CA LMG nozzleLMGPremiumM249 Wire HarnessM249 Wire Harness
Cybergun M249 FeatherweightInferno Gen 2 V2 (M4) Premium or Spartan kit + A&K Masada nozzleA&K MasadaPremium/SpartanV2 14″ Wire HarnessV2 Trigger Board
Echo 1 240 BravoINFERNO Gen 2 M249 Premium kitM4PremiumM249 Wire HarnessM249 Wire Harness
FALINFERNO Gen 2 V3 (AK) Premium Kit + A&K SR25A&K SR25PremiumV2 12″ Wire HarnessV3 Trigger Board
G&P M249Inferno Gen 2 V2 (M4) Premium or Spartan kit (shave down nozzle 0.5mm)Custom M4 shaved down 0.5mmPremium/SpartanV2 14″ Wire HarnessV2 Trigger Board
G&G SR25Inferno Gen 2 V2 (M4) Premium or Spartan kit + G&G Sr25 nozzleG&G SR25Premium/SpartanV2 14″ Wire HarnessV2 Trigger Board
G&P Stoner 63 (MK23)Inferno Gen 2 V2 (M4) Premium or Spartan kit (shave down nozzle 0.5mm)Custom M4 shaved down 0.5mmPremium/SpartanV2 14″ Wire HarnessV2 Trigger Board
G36 (TM Spec)INFERNO Gen 2 V3 (AK) Premium kit + G36 nozzleG36PremiumV3 12″ Wire HarnessV3 Trigger Board
ICS CXP APEInferno Gen 2 V2 (M4) Premium or Spartan kit + XCR nozzleXCRPremium/SpartanV2 14″ Wire harnessV2 Trigger Board
JG AUG (TM Spec)INFERNO Gen 2 V3 (AK) Premium Kit + G36 nozzle (shave down 1mm)G36 shaved by ~1 mmPremiumV3 12″ Wire HarnessV3 Trigger Board
King Arms 556INFERNO Gen 2 V3 (AK) Premium Kit + 556 nozzle556PremiumV3 12″ Wire HarnessV3 Trigger Board
Krytac SPRInferno Gen 2 V2 (M4) Premium or Spartan kitM4Premium/SpartanV2 14″ Wire HarnessV2 Trigger Board
KWA Ronin series 2.5 GBInferno Gen 2 V2 (M4) Premium or Spartan kit + AK nozzleAKPremium/SpartanV2 14″ Wire HarnessV2 Trigger Board
KWA M4Inferno Gen 2 V2 (M4) Premium or Spartan kitM4Premium/SpartanV2 14″ Wire HarnessV2 Trigger Board
LCT AK / AS VALINFERNO Gen 2 V3 (AK) Premium KitM4PremiumV3 12″ Wire HarnessV3 Trigger Board
M4 (TM Spec)Inferno Gen 2 V2 (M4) Premium or Spartan kitM4Premium/SpartanV2 14″ Wire HarnessV2 Trigger Board
M249 (CA, Echo 1, A&K)INFERNO Gen 2 M249 Premium kitM4PremiumM249 wire harnessM249 wire harness
Mp5 (TM Spec)Inferno Gen 2 V2 (M4) Premium or Spartan kitM4Premium/SpartanV2 14″ Wire HarnessV2 Trigger Board
MP5K (TM Spec)INFERNO Gen 2 V3 (AK) Premium Kit + A&K SR25 nozzleA&K SR25PremiumV3 12″ Wire HarnessV3 Trigger Board
PTS MASADAInferno Gen 2 V2 (M4) Premium or Spartan kit + PTS Masada nozzlePTS MasadaPremium/SpartanV2 14″ Wire HarnessV2 Trigger Board
SCAR L (TM Spec)Inferno Gen 2 V2 (M4) Premium or Spartan kit + CA SCAR L nozzleCa Scar LPremium/SpartanV2 14″ Wire HarnessV2 Trigger Board
SL9 (TM Spec)INFERNO Gen 2 V3 (AK) Premium Kit + G36 nozzleG36PremiumV3 12″ Wire HarnessV3 Trigger Board
SR25 (TM spec)Inferno Gen 2 V2 (M4) Premium or Spartan kit + A&K sr25 nozzleA&K sr25Premium/SpartanV2 14″ Wire HarnessV2 Trigger Board
XCR (Plastic Body) (TM Spec)Inferno Gen 2 V2 (M4) Premium or Spartan kitM4Premium/SpartanV2 14″ Wire HarnessV2 Trigger Board
VFC XCR (Metal Body)Inferno Gen 2 V2 (M4) Premium Kit + XCR nozzle + Universal Wiring KitXCRPremiumV2 14″ Wire HarnessUniversal Wiring Kit
S&T TAR 21 (centerline)Inferno Gen 2 V2 (M4) Premium Kit + Universal Wiring KitM4PremiumV2 14″ Wire HarnessUniversal Wiring Kit
VFC MP5 (Umarex)Inferno Gen 2 V2 (M4) Premium or Spartan kit + CA LMG nozzleLMGPremium/SpartanV2 14″ Wire HarnessV2 Trigger Board
VFC SCAR HInferno Gen 2 V2 (M4) Premium or Spartan kit + Scar H nozzleScar HPremium/SpartanV2 14″ Wire HarnessV2 Trigger Board
VFC SCAR LInferno Gen 2 V2 (M4) Premium or Spartan kitM4Premium/SpartanV2 14″ Wire HarnessV2 Trigger Board
Sig 552 (TM Spec)INFERNO Gen 2 V3 (AK) Premium Kit + A&K SR25 NozzleA&K SR25PremiumV3 12″ Wire HarnessV3 Trigger Board
Umarex 417Inferno Gen 2 V2 (M4) Premium Kit + Universal Wiring KitM4PremiumV2 14″ Wire HarnessUniversal Wiring Kit
Umarex G28Inferno Gen 2 V2 (M4) Premium Kit + Universal Wiring KitM4PremiumV2 14″ Wire HarnessUniversal Wiring Kit
Umarex UMPINFERNO Gen 2 V3 (AK) Premium Kit + G36 nozzleG36PremiumV3 12″ Wire HarnessV3 Trigger Board
Umarex H&K M27Inferno Gen 2 V2 (M4) Premium Kit + Universal Wiring KitM4PremiumV2 14″ Wire HarnessUniversal Wiring Kit

Troubleshooting Air Leaks

If your INFERNO Gen 2 is leaking, use this diagram to determine which O-ring may be faulty. For example, if your engine is leaking from around the nozzle, you should check the location and condition of O-ring #4.

For instructions in replacing an O-ring, please see the INFERNO Gen 2 Owner’s Manual.

If your INFERNO Gen 2 is leaking, use this diagram to determine which O-ring may be faulty. For example, if your engine is leaking from around the nozzle, you should check the location and condition of O-ring #4.

For instructions in replacing an O-ring, please see the INFERNO Gen 2 Owner’s Manual.

Cylinder Plugs

The cylinder plugs are part of the manufacturing process and are not adjustable or removable. Never attempt to remove or adjust the cylinder plugs. Doing so will cause leaking and engine malfunction.

  1. Remove the valve from the engine.
  2. Clean the threads of the plug(s) and valve housing thoroughly with acetone or fingernail polish remover and a sharp tool like an O-ring pick.
  3. Apply a small amount of black Vibra-Tite super glue or Loctite to the cylinder plug(s) threads and work it completely around the threads.
  4. Reinstall the cylinder plug(s) flush with the outside of the valve housing. DO NOT screw the plug in all the way as it may damage the valve.
  5. Allow to dry for at least one hour.
  6. Attach an air source and ensure an air-tight seal.

Solenoid Leaks

If your INFERNO, REAPER or BOLT HPA engine has low joules and/or inconsistent firing issues, it may be caused by a slow leak from the solenoid.

To test this, disconnect your battery, pressurize your engine and place the endcap of the solenoid in water. Bubbles coming from the endcap indicate an air leak. If your solenoid is leaking, we do not recommend attempting to repair it yourself. Please create a support ticket titled “Solenoid Leak” and attach a photo or video of the leak.

Be sure to dry your solenoid thoroughly after this test.