Check headed straight pin (9). Replace if bent or broken. Install new spring pin (14) if removed. Check detent plunger (12). Replace if bent or broken.
Check helical compression spring (11) for deformation or breaks. Replace if damaged, broken, or deformed.
Check back plate latch (10) for cracks or breaks. Replace if damaged.
Check buffer housing (24) for damaged threads and burrs. Remove burrs with file.
Check machine plug (16) for deformed threads or rounded shoulders on head. Replace if damaged.
Check retaining washer tab (18) (M240G only) and eleven spring washers (19) for cracks, bends or deformation. Replace if damaged. (NOTE: Spring washers are replaced as a set.)
Check buffer plug (23), braking buffer cone (22), expansion ring (21), and sleeve spacer (20) for cracks, burrs, deformation or damage to mating surfaces. Replace if damaged.
Check buffer housing (24) for damaged threads and burrs. Remove external burrs with file. Replace if threads are damaged.
23 22 21
23 22 21
Check buttplate (2) for cracks, deformation and burrs. Remove burrs with file. If cracked or deformed, replace buttplate.
Was this article helpful?