Sons of Liberty, 5.56 NATO, 11.5" 4150 CMV v2 barrel, new L89 Handguard with SB Tactical SBA5 and B5 systems gunfighter grip, VLTOR A4H2/BCM T2 equivalent buffer weight, 9-position buffer system, Angry Patriot lower receiver with one SOLGW metal magazine. The L89 Series of M4's are built on SOLGW forged uppers and lowers, and utilize the new L89 drive lock handguard. Built with an extended steel barrel nut, and SOLGW button rifled 4150 CMV barrels, these M4's are built for demanding end users. These L89's also feature a A5 length buffer system, liberty charging handle, liberty fighting triggers, B5 P23 grip, B5 winter trigger guards, and an ambi selector. The 7-sided L89 handguard features integral steel QD cups on both sides. These include one (30) round magazine along with SOLGW lifetime warranty guarantee certificate. - SOLGW Angry Patriot lower receiver - FDE Anodized - VLTOR A5H2 position A5/BCM T2 buffer system with Sprinco green spring and T2 buffer, endplate, and castle nut - SB Tactical SBA3 arm brace - B5 Systems Gunfighter MOD3 grip - SOLGW complete upper, 11.5" HPT/MPI 4150 CMV v2 Barrel, 1:7 twist, QPQ finish. Black Anodized - Milspec 7075-T6 forged , hard coat anodizing exterior with dry-film lubricated interior, T-mark engraved - SOLGW Carbine gas system - SOLGW M4-L89 Handguard 10.75" free float M-LOK - FDE Anodized - SOLGW QPQ-coated M4 feed ramp barrel extension - Caliber: 5.56 NATO - SOLGW A2 muzzle device - SOLGW BCG - SOLGW Large Charging Handle - SOLGW lower parts kit - SOLGW QD MLok sling mount - SOLGW Liberty fighting trigger - SOLGW QD MLok sling mount - SOLGW 1776 Velcro patch - SOLGW Spec76 2oz. Special Purpose Endurance Coating - SOLGW factory lifetime warranty certificate - SOLGW gun case - 1/30 round metal SOLGW magazines included