Late war M1 carbine Handguard with Metal clip (Inland)

To strengthen the plate that engages the receiver to hold the handguard in place, the plate was lengthened and held in place by 4 rivets instead of 2. Use of the 4 rivet handguards began during the Winter of 1944. The plate mounted to the underside of the handguard was lengthened to accommodate the 4 rivets. Since all manufacturers but Inland and Winchester had ceased production during mid 1944, these were only manufactured by or for Inland and Winchester