The AR-15 Buffer Tubes collection provides the foundational interface between stock systems and the AR-15 receiver — a critical component that controls buffer/bolt carrier travel, recoil impulse, and overall rifle ergonomics. Whether you’re building a carbine for duty, a lightweight hunting rig, or a precision AR-15 variant, choosing the correct buffer tube (and matching buffer/spring) ensures reliable cycling, correct length-of-pull, and repeatable return-to-battery performance.

Available in mil-spec and commercial diameters, fixed and rifle-length configurations, and purpose-built designs for SBRs and folding stocks, our selection supports a wide range of builds and user preferences. Each tube is manufactured to tight tolerances from billet or drawn tubing and finished for corrosion resistance—designed to accept standard buffer assemblies, endplates, and stocks while delivering long service life.

Key Features

Mil-Spec vs Commercial Fitment
Choose mil-spec (1.14" OD) for compatibility with most military-style stocks and commercial (larger diameter) for certain aftermarket stocks—ensuring secure fit and proper stock function.

Fixed, Carbine & Rifle Length Options
Available in fixed rifle-length for precision rigs, carbine-length for adjustable stocks, and intermediate lengths to tailor buffer positioning and LOP.

Material & Construction
Produced from 7075-T6 or 6061-T6 aluminum, or chromed/carbon steel options for enhanced wear resistance and longevity in high-round environments.

Compatible with Folding & Quick-Detach Adapters
Offered in designs that accept hinge or quick-detach assemblies for folding-stock conversions and compact transport solutions.

Buffer & Spring Matching
Matched buffer weights (H-, Carbine, Rifle, Heavy) and spring rates are recommended to optimize bolt carrier velocity and reduce felt recoil or bolt bounce—critical for suppressed, overgassed, or heavy-bolt builds.

Precision Threading & Endplate Interface
Accurate receiver threads and robust endplate seating ensure anti-rotation, proper torqueing, and secure sling QD/endplate mounting.

Corrosion-Resistant Finishes
Hard-coat anodize, nitride, or phosphate coatings protect against wear, corrosion, and environmental damage for long service life.

Easy Installation & Mil-Spec Compatibility
Designed for drop-in installation with standard castle nut/endplate hardware; many tubes are backwards compatible with mil-spec receivers and buffers.

Multiple Use Cases
Ideal for patrol carbines, lightweight hunting builds, SBRs (with proper compliance), precision chassis integration, and folding-stock conversions.