MTW-Spec Parts Compatibility

Parts/CompatibilityAEGReal SteelProprietary
Barrel NutMost, but not all.
Body Pins
Bolt CatchWith modification
Buffer Base Plate
Buffer Tube
Charging HandleWith modification
GripsWith modification
Hop Up
Inner Barrel
Magazines
Outer Barrel
Rail
Selector Switch
Trigger

Selector Switch Installation / Maintenance / Troubleshooting

Installation

If installing a new selector switch, please refer to this video for installation instructions. Please note this video is for electronics boards with a physical selector switch button. Please note the below instructions for boards using an optical sensor.

Optical Sensor

MTWs manufactured after October 1, 2021 are equipped with the black Spartan Electronics board with an optical select-fire sensor. This sensor works by detecting a dark or light surface on the selector barrel. Detecting a light surface will set the MTW to semi-auto and detecting a dark surface will set the MTW to full-auto.

A sticker or paint can be used to ensure that the two surfaces are detected correctly by the sensor.

Loose Selector Switch / Spring and Detent Replacement

Just like a real AR, the selector switch is held into each mode position by a spring and detent located in the lower receiver which will wear over time. The spring and detent can be replaced by removing the pistol grip.

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