The C - Products reference number 5X23041188CPD is designed for 223 Remington/5.56mm. Its features include:Capacity: It can hold up to 5 rounds at a time.Material: It is constructed from high-quality 400 series stainless steel for long-lasting durability.Follower: The model is equipped with an innovative plastic anti-tilt follower in vibrant orange color.Spring: A chrome silicon wire spring ensures reliability and longevity.Weight: The weight of the product is light at just 4.24 ounces.Finish: It is completed with a sleek, matte black finish for an aesthetically pleasing look.