Celik Arms Buck Master Gen2M - Barrel Nut (PB12M-C4)
The Celik Arms Buck Master Gen2M Barrel Nut is a precision-machined factory component designed to secure the barrel assembly to the receiver with consistent alignment and torque retention. Manufactured from high-grade, heat-treated steel and finished with a corrosion-resistant coating, the barrel nut provides the critical tension interface that maintains headspace, stability, and consistent accuracy in the Gen2M (magazine-fed) platform.
Function & fitment: the barrel nut threads directly onto the Gen2M receiver’s barrel extension, locking the barrel in precise alignment while distributing torque evenly across the mounting faces. Engineered to Celik Arms factory tolerances, it ensures repeatable assembly when the barrel is removed for cleaning or service and preserves gas system timing and sight alignment. Proper torque application using the correct factory tool is essential to maintain secure seating and avoid over-stressing threads or alignment surfaces.
Maintenance & service notes: always ensure the firearm is unloaded before performing any maintenance or disassembly. Inspect the barrel nut for signs of thread wear, galling, or corrosion, and replace immediately if any structural compromise is detected. Clean threads with a soft brush and lightly lubricate with a non-permanent anti-seize compound before installation. Always torque to Celik Arms specifications and verify correct barrel alignment after assembly. Intended exclusively for Celik Arms Buck Master Gen2M (magazine-fed) rifles — recommended for armourer service, replacement, or precision rebuild applications.
