This aftermarket Kit standard configuration AR4242 Round mix CHAMBER.

If you don't need AR4242, this kit can also provide other mix CHAMBER, such as AR2020, AR2929, AR3737, AR4242, AR5252, AR6060, AR7070, AR8686, etc. please note the part number or leave a message when you place an order.

If you have no choice, I will choose AR4242 for you.

The part numbers for the above mix CHAMBER are available, and you can place an order directly. If you don't find the mixing chamber part number you need above, please leave a message to me.