Sons of Liberty Gun Works AR-15 Stripped Lower Receivers provide an excellent starting point for customizing your AR-15 setup. SOLGW AR-15 Stripped Lower is fully compatible with a standard AR-15 platform, making it a perfect candidate for replacing your worn-out factory AR-15 lower. The construction is first-grade 7075 T6 aluminum, which makes them extra durable and resistant to temperature changes, corrosion, and wear and tear over extensive usage. SOLGW stripped lowers are available in multi-caliber and anodized finishes, and the final tuning is up to the Mil-spec standards, making them cross-platform compatible with major brands specialized in AR-15 production.