The USW Up grade Chassis has an built-in conventional Picatinny accent rail for a lightweight/laser and the folding stock. It is still ambidextrous in handling, with the ambidextrous slide capture lever and reversible magazine catch. The folding stock folds onto the correct facet from the weapon, wherever the stock release https://btstockconversionkit18417.bloginwi.com/60517398/an-unbiased-view-of-b-t-stock-conversion-kit