Sons of Liberty Gun Works EXO3 AR-15 Upper Receiver Assembly 5.56x45mm NATO 13.7" Barrel with Plan B Mount

The Sons of Liberty Gun Works AR-15 EXO3 Upper Receiver Group utilizes V2 combat barrels, Forged upper receivers, 4140 V2 Gas Blocks, and EXO3 (third gen) Handguards. These duty grade EXO3 rails are installed over the updated V2 barrel profile, optimizing weight distribution and barrel rigidity. They are assembled with V2 gas blocks made from 4140 steel for a solid, efficient gas seal. Note: NO BCG OR CHARGING HANDLE INCLUDED