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Sig Sauer P320 Custom Fire Control Unit (FCU)

100% of 100
Update 3-16-21: We've removed the quantity restrictions as it seems shipments are increasing.
Update 11-20-20: Because of limited availability, we're only allowing one FCU purchase per customer at this time. If you place multiple orders, all orders will be canceled.
Update 11-19-20: Sig Sauer has started shipping the P320 FCU!! We have hundreds on order but they may arrive in small batches. We recommend adding your email for notification. If you receive a notification that they are in stock but the site shows out of stock that means they already sold out and you should re-add your email. This will likely happen often if Sig continues shipping 5 to 10 units at a time. Note that we will not accept pre-orders by phone.

This is the stand alone FCU allowing you to completely build a custom P320 without having to buy a complete P320 to start.
Availability: Out of stock
The Sig Sauer fire control unit can be used to complete a Caliber X-Change Kit or build out a custom P320 from scratch. Since this is legally the firearm, it must be shipped to a FFL for transfer. Sign up on this page to be notified by email as soon as we receive the new FCU's.

Be sure to check out our huge selection of grip modules, slides, barrels and other P320 parts for your custom build!
More Information
UPC Code798681633319
ManufacturerSig Sauer
Accessory RailNot Applicable
FFL RequirementsMust be sent to receiving FFL dealer for transfer.
WarrantyWarranty provided by product manufacturer.
Shipping PriceSig handguns ship for free.
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