DealTAC Patent Pending design is Reinforced Nylon 6-6 with Marine Grade Brass threaded inserts molded into the buffer collar and pistol grip for strength and corrosion resistance.Our receivers are designed to accept any quality lower build kit. Using the Brass inserts into a high impact Nylon 6-6 receiver make the Tennessee Arms Receiver truly the Highest Strength/ Lightest weight Hybrid receiver (5.6oz stripped) on the market. We ARE the best Hybrid receiver on the market and always will be. from Tennessee Arms Company (Product TNARMS15) |