The Radian Weapons R0428 Model 1 Builder Kit with a 10" Magpul M-LOK Handguard is a premium choice for firearm enthusiasts seeking versatility and precision in their AR-15 builds. This kit, crafted by the renowned Radian Weapons, features a multi-caliber capability, allowing users to customize their shooting experience across various calibers. The inclusion of an ambidextrous lower receiver ensures that both left and right-handed shooters can operate the firearm with ease, enhancing its adaptability and user-friendliness. The 10" Magpul M-LOK Tactical Handguard offers a sleek and functional design, providing ample space for mounting accessories while maintaining a lightweight profile. Finished in a distinctive Radian Gray, this builder kit not only performs exceptionally but also stands out with its unique aesthetic. As a crucial component in the category of Receivers, Rifle Receivers, and Lower Receivers, the R0428 Model 1 is designed for those who demand reliability and performance in their AR15 receiver builds. Please note that this product requires an FFL for purchase, ensuring compliance with all necessary regulations. With a UPC of 817093024116 and MPN R0428, this builder kit is a testament to Radian Weapons' commitment to quality and innovation in firearm design. Whether you're a seasoned builder or a tactical enthusiast, the Radian Weapons R0428 Model 1 Builder Kit is engineered to meet the highest standards of performance and customization.