SIG SAUER MCX Rattler Upper Receiver Assembly .300 BLK M-LOK Handguard 5.5 inch Black

Upper Sig Sauer UPC 798681587735 MPN UAMCX5B300BLKTAP SKU SD9-UFH-MCX-UAMCX-5B-300-BLK-TAP

SIG SAUER MCX Rattler Upper Receiver Assembly .300 BLK M-LOK Handguard 5.5 inch Black
$1,649.00 Out of stock

at Optics Planet ·

Free shipping over $49

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Price history

Lowest seen
$1,649.00
Typical price
$1,649.00
Tracked since
Oct 29, 2026

The advertised price has held at $1649.00 since tracking began on Oct 29, 2026; no price changes recorded.

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