ATI Outdoors AR-15 Buffer Spring Natural One Size. 25 in Additional Features: Standard Included Accessories: Standard Activity/Occasion: Outdoor Hike Casual Travel Work Sports Duty Application: Work Casual Outdoor Everyday Tactical Size: One Size Age Group: Adults Seasonal/Temperature Use: All Seasons Quantity: 1 Fit: Regular Style: Tactical Gender: Unisex Features of ATI Outdoors AR-15 Buffer Spring Works with Commercial Military and Hybrid Buffer Tubes Virtually Indestructible Package Contents: ATI Outdoors AR-15 Buffer Spring The ATI Outdoor Ar-15 Buffer Spring is a quality addition to the ATI Outdoors lineup. For more great deals on AR15 Buffer Springs by ATI Outdoors please browse our ATI Outdoors Police & Duty Gear page. What firearm models does the manufacturer say ATI Outdoors AR-15 Buffer Spring is compatible with? The manufacturer suggests that ATI Outdoors AR-15 Buffer Spring is compatible with AR-15ATI Outdoors A.5.10.1030: AR-15 Buffer Spring Natural One Size