▼ 5% below avg
Sig Sauer MCX-SURG Upgrade Kit Flat Dark Earth .223 Rem / 5.56 10.3 Barrel
Lowest Price
$4,099.99
MSRP
$4,809.99
Savings
15% off
In Stock at
4 Stores
Updated
Jun 28, 2026
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11.5 5.56 MCX Upper Receiver Group"
Direct Thread 1.49lbs 7.3 Reduced Blow Back Suppressor"
Flat Dark Earth
Includes Adapter Kit for Standard M4 Lowers
Includes Lightweight Low-Profile Handguard and SD Handguard with Heatshield
Includes Lightweight LowPro Handguard, SD Handguard w/heatshield, M4 Lower Receiver Adaptor Kit
Selected by USSOCOM
Specifications
Description
Sig Sauer MCX-SURG Upgrade Kit Features The MCX-SURG Upgrade Kit embodies the best of firearm enhancements complete with a removable cage/handguard and folding stock with an adapter kit for customized configurations. Its 10.3 stainless steel barrel ensures durability longevity and accuracy. Equipped with a direct thread suppressor the MCX-SURG promises a quieter shooting experience and reduced recoil. The Flat Dark Earth finish contributes to its visual appeal while the entire kit ensures an optimized performance for your MCX series rifle. Sig Sauer MCX-SURG Upgrade Kit Specifications Manufacturer: SIG SAUER Family: MCX Series Model: MCX-SURG Type: NFA - Silencer Action: Semi-Auto Caliber/Gauge: 223 Rem | 5.56 NATO Finish: FDE Finish Type: Stainless Steel Barrel: 10.3 Additional Info: Direct Thread Suppressor Additional Info: Removable Cage / Handguard Additional Info: Folding Stock w/Adapter Kit