If your AR-15 pistol with a 7.5 inch barrel has timing issues due to being over-gassed, the Phase 5 Pistol Pigtail Gas Tube is the solution to your problem. The Phase 5 Pistol Pigtail Gas Tube design adds length to an otherwise short gas tube, having the effect of simulating a standard cycle time. The Phase 5 Pistol Pigtail Gas Tube is a quick and inexpensive way to solve your timing problem, because it frequently tames even the most over-gassed AR pistols without the need to experiment with buffer weights, different carriers, etc. A more mil-spec pistol means a more reliable pistol.

• Loop diameter: 1.46 to 1.56 inches
• Material: Stainless steel

The Phase 5 Pistol Pigtail Gas Tube works best under rails with an inside diameter of at least 1.65 inches, and fits all barrels using a pistol length gas system with an outer diameter of 1 inch or less.