Quote:
Originally Posted by smlake
If the bolt and receiver are not well lubricated with Breakfree CLP or Rem oil (or other such lubricant), the gun will jam.
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You answered your own question right there. AR's function better wet. Lube the bolt , and BCG rails.
Also, the 15-Sport is a tad over gassed. Install an "H" or "H2" buffer and see if it cures your harsh ejection problem.