M4 CARBINE RAIL ADPATER SYSTEM
Knights Armament rib rail panel has seen use on US military M4 Carbines, these panels are compatible with other handguards with MIL-STD-1913 rail systems.
Knights Armament rib rail panel has seen use on US military M4 Carbines, these panels are compatible with other handguards with MIL-STD-1913 rail systems.
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