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Sig Sauer M400 FDE Enhanced Patrol Upper Receiver - 16" .300 BLK

Sig Sauer M400 FDE Enhanced Patrol Upper Receiver - 16" .300 BLK

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This is a Sig Sauer M400 Enhanced Patrol 16" upper receiver chambered in .300 Blackout.

Note that Sig Sauer test fires these at the factory so it is not uncommon to see brass marks on the shell deflector - this is normal. It has not been fired beyond factory testing.

Specs - More Info
Additional Info
Caliber .300 Blackout
Manufacturer Sig Sauer
Sights (detailed) None
Frame Finish Black
Barrel Length (in) 16.0 in
Accessory Rail Not Applicable
Warranty Warranty provided by Sig Sauer. Warranty information is available for Sig Sauer products at https://www.sigsauer.com/support/warranty/.
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Product Questions

Product Questions

Does this include BCG and CH? Picture shows them included.

Referenced product: UAM400-300B-16B-ECP-FDE

This product includes the bolt carrier group and charging handle.

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Can i switch this upper out on my SIG M400? It currently is chambered fro 223/556.

Referenced product: UAM400-300B-16B-ECP-FDE

Response Date: May 16, 2019

Yes. This is compatible with a M400 lower.

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