A&K M249 / MK46 / Lambda MK48 Buffer Tube

High Mount or Low Mount | Built for Your Platform.

When every ounce matters, the Bull Craft Buffer Tube delivers.

Designed and manufactured exclusively by Bull Craft Industries—not copied, not outsourced—this purpose-built Buffer Tube is engineered specifically for the A&K M249, MK46, and Lambda MK48 platforms. Manufactured using advanced SLS-printed Nylon PA12, it replaces the bulky OEM assembly with an incredibly strong, lightweight solution that dramatically reduces rear-end weight while adding modern stock compatibility and integrated HPA line routing.

Available in High Mount and Low Mount configurations, you can choose the stock height that best complements your optic setup, shooting style, and personal preference.

At just 4 ounces, the Bull Craft Buffer Tube weighs a fraction of the factory assembly while maintaining the strength and durability Bull Craft products are known for. Whether you're building an ultra-light HPA support weapon or modernizing your AEG, this buffer tube is designed to perform under hard use.

Features

✅ Available in High Mount and Low Mount configurations
✅ Designed and manufactured by Bull Craft Industries
✅ Made in the USA
✅ Ultra-lightweight — approximately 4 oz
✅ Dramatically lighter than the factory buffer tube assembly
✅ Rugged SLS-printed Nylon PA12 construction
✅ Compatible with a wide variety of AR-style buffer tube stocks
✅ Integrated HPA line routing for clean, protected airline management
✅ Compatible with A&K M249, MK46, and Lambda MK48 platforms
✅ Compatible with both HPA and AEG builds
✅ Precision engineered for strength, durability, and long service life
✅ Quick turnaround and reliable shipping
✅ Actual inventory available — no ghost listings
✅ Outstanding customer support via phone, email, Facebook, Instagram and in-store

Specifications

Weight: Approximately 4 oz

Compatibility: A&K M249, MK46 and Lambda MK48

Build Type: HPA & AEG Compatible

Mount Options: High Mount or Low Mount