Next Level Armament Reaction Rod - Nitrided - AR-15 Armorer Tool - Cosmetic Blem

Protect your upper receiver and torque components correctly. The Next Level Armament Reaction Rod routes installation torque to the barrel extension instead of the receiver walls, preventing deformation and surface marring during barrel nut, muzzle device, and handguard work.

The Next Level Armament Upper Receiver Reaction Rod is a one-piece steel bar designed for AR-15 builders and armorers who need a precise, rigid torque anchor during component installation.

Three features make this essential bench equipment. First, it indexes through the upper receiver directly into the barrel extension, transmitting installation torque to the barrel extension rather than the receiver body and eliminating deformation or clamp damage. Second, a nitride finish delivers increased surface hardness and corrosion resistance, keeping this tool performing through years of professional shop use. Third, solid one-piece construction maintains axial stiffness for consistent, repeatable indexing into the barrel extension every time.

Compatible with standard mil-spec AR-15 upper receivers and barrel extensions. Designed for use with a machinist's vise or dedicated AR-15 vise block.

Machined from solid steel with a nitrided surface for enhanced hardness and corrosion resistance.

Built for barrel nut installation, muzzle device attachment, and handguard fitting on AR-15 platform rifles — from dedicated home gunsmiths to professional shop armorers.

Made in the U.S.A. by Next Level Armament. Sold as a cosmetic blemish unit — minor surface imperfections may be present; full function and fitment are guaranteed.