BCA Brushless LCT RPKS-74MN Build

Vendor: BCA
Availability: Out Of Stock
  • BlackBlitz Airsoft
BCA Brushless LCT RPKS-74MN Build

Vendor: BCA

BCA Brushless LCT RPKS-74MN Build


Vendor: BCA

BCA Brushless LCT RPKS-74MN Build


BCA Brushless Build

Our premium builds are back! Now better than ever with a brushless motor, you can experience the pinnacle that AEGs offer when you dominate the field with one of our builds. 


  • PDI 6.05mm SUS304 Stainless Steel Inner Barrel 
  • R-Hop Installation for PDI Barrel
  • Modify Flat Baton Ryusoku Bucking
  • Lonex AK Hopup Chamber
  • Jefftron Leviathan Optical Trigger Board w/ Bluetooth
  • BCA CNC Aluminium Cylinder Head with Sorbo Pad
  • BCA Custom Lapped Aluminum Cylinder 
  • BCA Piston Head X-Ring
  • Lonex POM Piston head
  • SHS 14T Lightweight Piston
  • SHS AK Nozzle
  • SHS Tappet Plate with Enhanced Tappet Spring
  • Prometheus Triple Torque Helical Gears
  • Warhead Industries Brushless CNC Black High Speed Motor
  • LCT Magwell Spacer


Estimated ROF:

~20 RPS with 11.1v lipo battery


Muzzle Velocity:

300 - 450 FPS. Please indicate requested FPS range while ordering, for example, 370 - 400 FPS.



This setup features a drivetrain consisting of a Warhead 37k Brushless Motor paired with a Prometheus Triple Torque Helical Gear Set. We chose this combination because brushless motors work very well with high torque gear sets, and helical gear sets offer smoother operation with a reduced noise signature.

The trigger system of choice here is the Jefftron Leviathan Optical Trigger Board with Bluetooth. This system uses optical sensors for both the selector and cutoff mechanism, while retaining a tactile feel with a hard stop for the trigger. It is also programmable via most Bluetooth-enabled mobile devices, giving you plenty of flexibility and customizability.

The piston and cylinder assembly consists of tried-and-true components that have proven their reliability and performance, with the addition of a sized and lapped cylinder that has been optimized for use with X-rings to reduce friction and improve system efficiency.

The barrel group features a RHopped PDI SUS304 6.05mm Stainless Steel Barrel inside a Lonex Enhanced Aluminum Hopup Unit and a Modify Soft Moundless rubber. Simply the best you can get.

  • Estimated lead time: 4 weeks
  • Product may come with orange tip
  • We recommend using 0.28g - 0.32g ammo with our barrel group setups.

Our normal turnaround time for custom builds is roughly four weeks, however, we often complete the work much faster. We also sometimes experience unexpected delays due to tech backlog, unanticipated compatibility issues, etc. so our stated turnaround times are only estimates. We will not guarantee a gun returned by a certain date, but we will do our best to meet your deadlines. If a work order is not completed by the expected date, we will not offer a refund or discount on the work order unless the delay is deemed excessive at our discretion.

At BlackBlitz Airsoft we care about the quality of our tech work. Your new BCA build will come with a one (1) year internal warranty, from the date of delivery/reception of the build. You must keep your order confirmation and/or receipt to be eligible for this warranty. This warranty is non-transferable. Any external damage or user error will not be covered under this warranty. We reserve the right to reject warranty claims that are not due to material and/or worksmanship issues.

You will have access to one (1) free inspection plus maintenance with your new BCA build. This must be used within two (2) years from the date of delivery/reception of the build. There will be no labour fees associated with the inspection and maintenance; if parts are required, you will be responsible for the cost of the replacement(s), as well as any necessary shipping costs.

Subsequent inspections and maintenance will start at $80 per session, plus the cost of parts and shipping.

For any warranty claims or inspection/maintenance requests, please contact us.

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