The SOLGW M4 Stripes Rollmark Lower Half w/A5 Buffer System; No Stock M4LOWER-A5-NS-ST is a versatile lower receiver designed for AR-15 builds. Made from mil-spec 7075-T6 aluminum forgings, this lower features the Rebellious Stripes roll mark and is finished with a Type III hard coat anodized finish for durability and corrosion resistance. The A5 buffer system includes a 9-position receiver extension tube, an A5H2 buffer, and a Sprinco Green spring, ensuring reliable performance and smooth operation. This lower is machined to tight tolerances for a precise fit and includes a low shelf for compatibility with various fire control groups. SOLGW M4 Stripes Rollmark Lower Half w/A5 Buffer System; No Stock M4LOWER-A5-NS-ST