Overview
The 1UP Racing Lockdown Adjustable Bullet Plugs are the world’s first tool-free adjustable 4mm bullet connectors, engineered to deliver rock-solid battery connections for serious RC racers. A simple twist of the precision internal compression mechanism locks the plug for a tight, vibration-resistant fit — no tools, no loose bullets, no lost power.
Finished in an eye-catching Red/Black colorway with mirror-like detailing, Lockdown Bullet Plugs reduce resistance and maximize electrical efficiency from the first lap to the checkered flag.
Key Features
- World’s first tool-free adjustable 4mm bullet plugs
- Internal compression locking system — tighten by hand
- Precision-machined components with durable outer housing
- 4mm bullet size — fits standard 4mm battery sockets
- Bold Red/Black finish with mirror-like detailing
- Genuine 1UP Racing performance product — Part #190445
Performance Benefits
- Eliminates loose connections and connector fatigue
- Maximizes power transfer and minimizes electrical resistance
- Delivers consistent voltage and efficiency throughout the run
- Vibration-resistant fit stands up to high-current racing
Usage Notes
- Ideal for competitive RC racing and high-power brushless setups
- Solder onto ESC or battery leads using proper soldering technique
- Ensure bullets are fully locked before operation
- Inspect connectors regularly for wear or debris
What's Included
- (1 Pair) 1UP Racing Lockdown Adjustable Bullet Plugs – 4mm – Red/Black
Summary
- Tool-free adjustable 4mm bullet connectors
- Twist-to-lock compression system for a secure fit
- Low-resistance, high-efficiency power delivery
- Bold Red/Black finish with mirror detailing
- A must-have upgrade for any serious RC racer
