Shop › MIDWEST AR15 END PLATE ADAPTER-LOOP MIDWEST AR15 END PLATE ADAPTER-LOOP $38.95 Midwest Industries Loop End Plate Sling Adapter for 4-position or 6-position CAR/M4 Stock MCTAR-13 Quantity: Add To Cart Added! Midwest Industries Loop End Plate Sling Adapter for 4-position or 6-position CAR/M4 Stock MCTAR-13