Description
AR-15 Buffer Tube Kit – 6-Position Mil-Spec | Complete Assembly
Build it right from the ground up with the LBE Unlimited AR-15 Mil-Spec Buffer Tube Kit. This complete assembly includes all the essential components needed to finish the rear of your lower receiver—precision-engineered to military specifications and Made in the USA for rock-solid performance you can trust.
Kit Includes:
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6-Position Mil-Spec Buffer Tube
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Carbine Recoil Spring
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Carbine Recoil Buffer
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Receiver End Plate
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Castle Nut
Why Choose the LBE Mil-Spec Buffer Tube Kit?
✔️ True Mil-Spec 6-Position Tube
Manufactured to military dimensions, this 6-position buffer tube accepts all standard mil-spec AR-15 buttstocks—ensuring a snug, wobble-free fit. The six locking positions allow quick length-of-pull adjustments for shooters of all sizes and applications.
✔️ Complete, Drop-In Ready Kit
Whether you’re assembling a new lower or replacing worn-out parts, this kit provides all the rear receiver components you need—no hunting for separate pieces or compatibility guessing games.
✔️ High-Quality Materials
Each component is manufactured to exacting standards for long-lasting reliability and smooth cycling. The buffer and spring are tuned for standard 5.56/.223 setups, delivering consistent recoil control and reliable bolt operation.
✔️ Perfect for:
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New AR-15/M4 rifle or pistol builds
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Mil-spec upgrade over commercial-spec kits
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Builders who want a complete, U.S.-made solution
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Spare parts and field repair kits
✔️ Made in the USA
Proudly manufactured by LBE Unlimited, known for quality AR parts and components trusted by pros and builders nationwide.
No shortcuts. No compromises.
Choose the LBE Unlimited AR-15 Mil-Spec Buffer Tube Kit for a solid foundation that keeps your rifle running smooth and reliable—round after round.