10. SHORT RECOIL.
Step 1. Improper gap space or worn, missing, or broken bolt rings (1).
b. Replace bolt rings (1) and stagger gaps (p 3-21).
Adjust by bending in area of handguards or replace gas tube (2) (P 3-29).
Step 3. Gas tube spring pin (3) missing from front sight (4).
Replace gas tube spring pin (3) (p 3-29). Step 4. Partially plugged gas system because of carbon build-up in the gas tube (2).
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