ATI Outdoors AR Carbine Length Gas Tube 9.75in Stainless Steel Stainless One Size. Specifications for ATI Outdoors AR Carbine Length Gas Tube: Manufacturer: ATI Outdoors Finish: Matte Fabric/Material: Steel Gas System Length: Carbine Length Gun Model: AR-15 Additional Features: Standard Included Accessories: Standard Activity/Occasion: Casual Travel Work Sports Duty Hike Outdoor Application: Work Outdoor Everyday Tactical Casual Fit: Regular Style: Tactical Gun Type: Rifle Quantity: 1 Seasonal/Temperature Use: All Seasons Age Group: Adults Size: One Size Gender: Unisex Features of ATI Outdoors AR Carbine Length Gas Tube Works with Low-Profile Gas Block for Installation. Package Contents: ATI Outdoors AR Carbine Length Gas Tube What firearm models does the manufacturer say ATI Outdoors AR Carbine Length Gas Tube is compatible with? The manufacturer suggests that ATI Outdoors AR Carbine Length Gas Tube is compatible with AR-15ATI Outdoors A.5.10.2549: AR Carbine Length Gas Tube 9.75in Stainless Steel Stainless One Size