Bushmaster is now selling stocks and handguards for the ACR.
The Folding/Adjustable stock sells for $150. If you don’t mind the Magpul MOE-style handguard it is much cheaper to purchase the basic ACR model, which sells for about $400 less than the enhanced model, and upgrade it with the foldable stock.
Bushmaster says more accessories, including barrels, will be available in coming weeks.