LBT MK46 Box Magazine Insert

Real Steel LBT MK46 2500rnd Magazine Insert

Upgrade your M249 with Bull Craft’s LBT MK46 2500-round magazine insert, purpose-built for users running a real steel LBT MK46 box magazine. Powered by our springless Cattle Drive Feed System, this insert features a massive motor with external speed control for flawless, high-speed feeding. Built from ultra-durable Nylon PA12 and printed in-house in Florida, it’s engineered to perform under pressure.

✅ Made in the USA
✅ Massive Motor w/ External Speed Control – keeps you in the driver’s seat

✅ Recommended Power Source: 11.1v LiPo for optimal performance
✅ Springless Design for Consistent Feeding
✅ Super Durable Nylon PA12 Construction
✅ Comes with Bowden Spring
✅ Wiring Diagrams Available (AEG & HPA)
✅ Tested with: Titan, Aster, Leviathan, Gate Warfet
✅ Superb Support via email, phone, Facebook, Instagram, and in-store
✅ Quick Turnaround & Reliable Shipping
✅ Actual Availability — No ghost listings

Weight: .35 lb
Capacity: 2500 rounds

⚠️ Important HPA Compatibility Notice — READ BEFORE PURCHASE

All Bull Craft drum magazines and inserts require a Trigger Control Unit (TCU) when paired with HPA platforms such as PolarStar or Wolverine.

• Standard FCUs do not provide sufficient power for motor-driven feeding
• With a TCU installed, feeding activates automatically on trigger pull
• Already running an Airsoft Junkiez TCU? You’re good to go — full compatibility confirmed

⚠️ Don’t Be Fooled by Knockoffs

The Cattle Drive™ Springless Clutch Drive Feeding System is often imitated—but never duplicated.

• Designed, refined, and proven in-house
• Built with premium SLS Nylon PA12 and robust motor systems
• Backed by real-world testing, not marketing fluff

Don’t trust your loadout to inferior clones. Choose the original. Choose Bull Craft.