{"id":20695,"date":"2026-05-30T20:52:41","date_gmt":"2026-05-31T02:52:41","guid":{"rendered":"https:\/\/trb.fyi\/trbstage\/?p=20695"},"modified":"2026-08-07T19:40:45","modified_gmt":"2026-08-08T01:40:45","slug":"advanced-ar-15-troubleshooting-guide","status":"publish","type":"post","link":"https:\/\/trb.fyi\/trbstage\/advanced-ar-15-troubleshooting-guide\/","title":{"rendered":"Advanced AR-15 Troubleshooting Guide"},"content":{"rendered":"<p><!-- cache-invalidate --><\/p>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":3,"featured_media":20776,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_afseo_title":"Advanced AR-15 Troubleshooting: Expert Fixes for Feeding, Cycling &amp; Extraction","_afseo_meta_description":"Advanced AR-15 troubleshooting guide covering feeding, extraction, cycling failures. 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Causes, diagnosis &amp; fixes from 40+ years of firearms experience.","_afseo_schema_type":"Article","_afseo_breadcrumb_title":"","_afseo_faq_json":"{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Why does my AR-15 keep jamming?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Most AR-15 jams stem from three areas: magazine issues (worn feed lips or weak springs), gas system problems (under-gassed from buffer too heavy or gas leak), or extraction failures (weak extractor spring or dirty chamber). Start diagnostics with a known-good magazine and inspect gas block alignment.\"}},{\"@type\":\"Question\",\"name\":\"How do I fix AR-15 stovepipes?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Stovepipes typically indicate weak ejection. Check your extractor tension (should hold .308 cartridge against bolt face), replace the extractor spring if worn, and verify you're running the correct buffer weight for your gas system length.\"}},{\"@type\":\"Question\",\"name\":\"What causes AR-15 failure to feed?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"FTF usually comes from magazine issues (damaged feed lips, weak spring), gas system problems (under-gassed), or buffer too heavy. Check magazine seating (click), inspect feed ramp for burrs, and verify gas block alignment.\"}},{\"@type\":\"Question\",\"name\":\"What causes AR-15 failure to extract?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Extraction failures typically mean a weak extractor spring, broken extractor, or dirty chamber. The extractor should click firmly over rim. If chamber is carbon-locked, soak with CLP and brush thoroughly.\"}},{\"@type\":\"Question\",\"name\":\"What is AR-15 short-stroking?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Short-stroking happens when the BCG doesn't travel far enough rearward to eject or chamber the next round. Causes include: buffer too heavy, gas port obstruction, gas leak at block, or carrier key loose. Check gas key staking and gas block alignment first.\"}},{\"@type\":\"Question\",\"name\":\"How tight should AR-15 barrel nut be?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Torque to 30-80 ft-lbs per TM 9-1005-319-10. Start at 30, check headspace with GO\/NO-GO gauges, do not exceed 80 ft-lbs. Staked gas keys should be 35-40 in\/lbs.\"}},{\"@type\":\"Question\",\"name\":\"What buffer weight should I use for AR-15?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Carbine gas: 3.0-3.8 oz standard. Rifle gas: 5.0-5.6 oz. If over-gassed (brass ejecting forward of 3 o'clock), add mass. If under-gassed (brass at 5-6 o'clock), go lighter or check gas port size.\"}},{\"@type\":\"Question\",\"name\":\"When should I replace my AR-15 extractor spring?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Replace every 5,000 rounds or if extractor tension feels weak (should snap firmly over rim). Upgrade to BCM\/springco if running suppressed or hot ammo. Insert should be black (mil-spec).\"}}]}","_afseo_howto_json":"{\"@context\":\"https:\/\/schema.org\",\"@type\":\"HowTo\",\"name\":\"How to Troubleshoot AR-15 Failure to Feed\",\"description\":\"Systematic 3-step diagnostic for AR-15 feeding failures following military TM workflow\",\"supply\":[{\"@type\":\"HowToSupply\",\"name\":\"Known-good magazine\"},{\"@type\":\"HowToSupply\",\"name\":\"CLP or gun oil\"},{\"@type\":\"HowToSupply\",\"name\":\"Bronze bore brush\"},{\"@type\":\"HowToSupply\",\"name\":\"Cotton patches\"}],\"tool\":[{\"@type\":\"HowToTool\",\"name\":\"Gloves\"},{\"@type\":\"HowToTool\",\"name\":\"Eye protection\"}],\"step\":[{\"@type\":\"HowToStep\",\"name\":\"Field Check (30 seconds)\",\"text\":\"Ensure magazine is fully seated (should click). Check for obvious obstructions, bolt forward, and that you're using the correct ammunition.\",\"time\":\"PT30S\"},{\"@type\":\"HowToStep\",\"name\":\"Range Diagnosis (2 minutes)\",\"text\":\"Try a different magazine (known-good from your kit). If issue persists, check gas block alignment and inspect feed ramp for damage or carbon buildup.\",\"time\":\"PT2M\"},{\"@type\":\"HowToStep\",\"name\":\"Workbench Fix\",\"text\":\"Disassemble BCG, replace worn magazine if feed lips damaged, check gas key staking, clean feed ramp burrs with fine stone, verify gas tube alignment.\",\"time\":\"PT20M\"}],\"totalTime\":\"PT25M\",\"estimatedCost\":{\"@type\":\"MonetaryAmount\",\"currency\":\"USD\",\"value\":\"0-30\"}}","_afseo_quick_answer":"Most AR-15 malfunctions trace to three areas: the magazine, the gas system, and bolt extraction. 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