The IO ML7 upper consists of a 7″ M-Lok configuration. Barrel length is 7.5 and comes chambered in 5.56, 7.62, 300BLK and 9 x 19mm. Upper does not include charging handle and BCG. Rifling profile varies depending on caliber please see details under caliber selection.
|Dimensions||19.5 × 9 × 3 in|
5.56 x 45mm, 7.62 x 39mm, 9 x 19mm, 300BLK