Buffer Tubes, Buffers & Springs for AR-15

AR-15 Buffer Tubes, Buffer Springs & Buffers

Shop AR-15 buffer tubes, buffer springs, buffers, and related parts at Moriarti Armaments for compatible AR-platform configurations. Browse carbine buffer tubes, pistol buffer tubes, AR-15 buffer springs, standard and heavy buffers, end plates, castle nuts, and complete buffer assemblies. The correct AR-15 buffer system helps control bolt carrier movement and supports dependable cycling, with buffer weight and spring selection varying by caliber and firearm configuration. Whether you're replacing worn components, changing your stock or pistol setup, or selecting a heavier buffer for a specialty caliber, explore individual products by tube type, buffer weight, spring specification, and compatibility to find the appropriate components for your AR-15.

What buffer weight should I use in my AR-15?

The correct AR-15 buffer weight depends on the caliber, barrel length, gas system, ammunition, and overall firearm configuration. Standard carbine setups commonly use carbine, H, H2, or H3 buffers, while some short-barrel, suppressed, or large-bore configurations may benefit from different buffer weights or springs. The goal is a properly balanced system that allows dependable cycling without excessive bolt carrier speed. Always match the buffer and spring to the specific firearm configuration and manufacturer recommendations.