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by Rain, from WA, United States Asked on August 14, 2022
The Phase 5 Tactical AR-15/M16 Pistol Pigtail Gas Tube was designed to solve timing problems for over-gassed 7.5" AR pistols. The pigtail design causes the tube to simulate a more standard cycle time and helps remedy timing problems without patchwork like a heavier buffer, etc. It fits all barrels using a pistol length gas system with an outer diameter at or below 1”. The diameter of the outside of the pigtail gas tube loops range from 1.46" - 1.56". For best fit, the minimum inner diameter of a quad rail or hand guard should be 1.65"