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Sig Sauer M400 SRP 9" 300 Blackout Upper Receiver

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Sig Sauer M400 SRP Upper Receiver, 300 AAC Blackout, 9" BBL

Sig Sauer M400 SRP 9" 300 Blackout Upper Receiver

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Sig Sauer will soon have M400 300 Blackout direct impingement upper receiver for the AR-15 platform, such as the M400 and 516 variants. This model will have a 9" barrel for AR pistols or Short Barrel Rifles. Like most SRP models we should expect standard hanguards, a flat top receiver with no sights, and likely a picatinny mount front gas block without a front sight post. All NFA rules apply

Additional Information

SKU UAM400-300B-9-SRP
Caliber .300 Blackout
Manufacturer Sig Sauer
Barrel Length (in) 9 in
Accessory Rail Not Applicable
Warranty Warranty provided by Sig Sauer. Warranty information is available for Sig Sauer products at

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