MAC 11 9 mm original suppressor. This unit is packaged with with MAC 11 listed under “Machine Guns.” Currently this item is included with MAC 11 purchase. See FAQ for NFA firearm purchase Rules and Regulations. You Must be a Dealer with an FFL license to purchase this item directly from us or have it transferred to your local FFL/SOT dealer for final sales to individuals. Read the information in the FAQ section. Shipping will be actual FEDEX rates. Florida residents add 7% tax. All NFA Rules apply. Due to market fluctuations, all prices are subject to change.