Our MAT-9 lower receivers feature an ambidextrous setup, ensuring seamless operation for both left and right-handed shooters. The Lower has a complete enhanced mil-spec trigger. They are enhanced with the Matador Arms ergonomic grip for superior handling and comfort. The near vertical grip is perfect for CQB. The inclusion of a 1913 rail opens up endless customization possibilities, allowing you to attach a variety of folding stocks and accessories. MP5 compatibility provides easy access to proven magazines and cross compatibility between your favorite side arm. Our commitment to quality is reflected in the “Made in the USA” craftsmanship. Elevate your firearm build with lower receivers that set the standard for excellence.