LBT MK48 Box Magazine Insert | BULL CRAFT

LBT MK48 Box Magazine Insert

Upgrade your M249 with Bull Craft’s magazine insert designed specifically for users running a real steel LBT MK48 box magazine. Powered by our springless Cattle Drive Feed System, this insert features a robust motor with external speed control for consistent feeding at variable speeds. Built from ultra-durable Nylon PA12 and printed in-house in Florida, it’s engineered to withstand field abuse without warping or bending.

✅ Made in the USA
✅ Massive Motor w/ External Speed Control – keeps you in the driver’s seat
✅ 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
✅ Recommended Power Source: 11.1v LiPo for optimal performance

All Bull Craft drum magazines and inserts require a Trigger Control Unit (TCU) when paired with HPA platforms such as PolarStar or Wolverine. Without a TCU, standard FCUs lack power for motor-driven feeding. With a TCU installed, feeding activates automatically on trigger pull. Already own an Airsoft Junkiez TCU? You’re good to go — our system runs seamlessly with it.

Weight: .39 lb
Capacity: 

⚠️ Don’t Be Fooled by Knockoffs

Bull Craft stands behind every product we build—because we build them to perform, not just to sell. The Cattle Drive™ Springless Clutch Drive Feeding System is being imitated but never duplicated. Others may copy the look, but they can’t match the engineering, the materials, or the battlefield-tested reliability.

• Designed, refined, and proven in-house
• Built with premium SLS Nylon 12 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.