The SOLGW M4 Stripes Rollmark Lower Half w/A5 Buffer System & L2S Trigger; No Stock M4LOWER-A5-L2S-NS-ST is engineered for superior performance and reliability. This lower receiver is constructed from mil-spec 7075-T6 aluminum forgings and features the Rebellious Stripes roll mark. The A5 buffer system includes a 9-position receiver extension tube, an A5H2 buffer, and a Sprinco Green spring, providing enhanced recoil management and smoother cycling. The Liberty Fighting Trigger offers a crisp and consistent trigger pull, ideal for precision shooting. Finished with a Type III hard coat anodized finish, this lower is built to withstand rigorous use. SOLGW M4 Stripes Rollmark Lower Half w/A5 Buffer System & L2S Trigger; No Stock M4LOWER-A5-L2S-NS-ST