Check for compliance with annual gaging requirements (headspace as minimum). Notify Direct Support Maintenance for scheduling of annual gaging.
Check Barrel (1) for bulges, cracks, bends, burrs, obstructions or pits in chamber and bore, and loose front sights. Inspect Collar (2) for cracks or burrs. Make sure Compensator (4) is not cracked and fastened securely. Grip (5) should not be cracked or missing. Handle (6) should not be bent. Pull back on Handle (6) to make sure spring is not missing or weak.
Barrel assembly damaged. Suppressor cracked or loose.
Item To Be Checked or Serviced
Check heatshield for bent, broken or missing components.
Bent, broken or components missing.
Some heat distortion or charring may be observed on the outer non-metallic portion of the heatshield assembly and is not cause for replacement.
Check Buttstock and Buffer Assembly (1) for cracks, breaks, or missing components. Ensure Shoulder Rest (2) locks in both positions.
Cracked, broken, or components missing.
Push in on Buffer Plunger (3) to make sure spring is not broken or weak. Check for oil leaks on face of backplate.
Spring broken, weak, or has leaks.
Was this article helpful?