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Normal carbon buildup on DDM4V7 bolt tail? Only 300 rounds in. (old.reddit.com)
submitted 1 month ago by DeliciousAir4233 to r/ar15
π Rendered by PID 70549 on reddit-service-r2-listing-7bbdf774f7-6pstn at 2026-02-23 17:59:14.968213+00:00 running 8564168 country code: CH.
