The Sig Sauer P365 Firearm Control Unit (FCU) is the easiest way to start a personal "Sig build." Here at Ernie's Arms Accessories we have a few grip modules in-stock. With the FCU & grip modules, you're half-way there. Buy with confidence here at Ernie's Arms Accessories and start your next P365, P365X, or P365XL build...

This firearm ships from my supplier warehouse and sometimes takes longer than usual to make it to its destination. Also, holidays or extreme weather conditions can delay shipping as well.

It is your responsibility to know the laws where you live and that you are legally able to own this firearm and can pass a NICS background check. I charge a 25% restocking fee and all fees associated with this purchase (including credit card refund fees) if the buyer is prohibited from owning this firearm in the jurisdiction in which they live. All cancelled orders will be charged a 25% restocking fee as well.

A $5 processing fee "maybe" added to every online purchase.