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Installation instructions for AR-15 Carbine Length 6.75" 2 Piece Drop In Handguard Quad Rail (MQRSL). This will fit carbine length .223 guns which have direct gas impingement systems (not external gas pistons).
Installation instructions for AR-15 Carbine Length 6.75" 2 Piece Drop In Handguard Quad Rail (MQRSL). This will fit carbine length .223 guns which have direct gas impingement systems (not external gas pistons).
