Celik Arms Buck Master Gen 2 — Action Arm (PB12-D2)
The Celik Arms Buck Master Gen 2 action arm is a factory-spec operating component engineered to transmit controlled motion between the bolt carrier group and the forend mechanism within the Gen 2 assembly. Machined from heat-treated, high-grade steel with a controlled hardness profile and a corrosion-resistant surface finish, the action arm is produced to Celik Arms dimensional and metallurgical standards to ensure precise movement, durable engagement faces and long service life under repeated firing and environmental stress.
Function & fitment: the action arm locates between the bolt carrier and forend interface, converting reciprocating movement into coordinated mechanical timing for the operating group. It interfaces with the carrier slots, push button linkage and associated pins to provide consistent cycling, smooth operation and secure engagement during firing and reloading. It is a direct-fit OEM replacement produced to Celik Arms tolerances so it installs without modification. Correct orientation, seating and verification of full travel are required during assembly to ensure proper lockup and timing of the operating group.
Maintenance & service notes: always confirm the firearm is unloaded before disassembly. Inspect the arm for bending, cracks, surface wear, peening or corrosion; replace if any structural defects or deformation are present. Clean all contact faces, pivot points and channels with a soft brush and mild solvent; avoid abrasive methods or high heat that could affect surface hardness. During reassembly, ensure free movement through the entire stroke range and verify smooth operation during controlled function checks. Replace any worn pins, springs or connecting parts associated with the linkage assembly.
Intended exclusively for Celik Arms Buck Master Gen 2 assemblies and recommended for professional armourer service, timed-component replacement and authorised repairs.
