Luth Ar 223 Rfl/fxd Bfr Tube Assy

The Luth-AR 223 Rifle Fixed Buffer Tube Assembly is a complete, ready-to-install component package designed for AR-15 platforms configured with A2 fixed buttstocks. This rifle-length buffer tube assembly delivers the correct spring rate and buffer weight tuning for .223 Remington and 5.56mm NATO cartridges, ensuring reliable cycling and consistent recoil impulse across a broad range of ammunition loads and suppressor configurations.

The assembly includes three core components: an A2 rifle-length buffer tube, a standard .223 rifle recoil spring, and a rifle-class buffer body. This combination maintains the correct relationship between spring preload and buffer mass necessary for proper bolt carrier group cycling. The A2-compatible design integrates seamlessly with traditional fixed buttstocks, eliminating any fitment guesswork. Each component is engineered to AR-15 mil-spec tolerances, ensuring durability across training cycles and deployed use.

This buffer tube assembly serves operators, shooters, and armorers building or maintaining .223/5.56 rifles that require a fixed stock configuration. Whether for patrol carbines, precision training builds, or legacy platform updates, the fixed buffer tube assembly provides a no-compromise foundation for reliable operation. It is the correct choice for any A2-stock AR-15 that demands predictable recoil management and consistent bolt carrier velocity.

The rifle-length buffer tube specification originated from the M16 platform and remains the standard for most civilian and military fixed-stock AR-15 configurations. Luth-AR components are manufactured to tight tolerances and remain widely recognized among gunsmiths and platform builders for straightforward installation and reliable long-term performance.