Home / AR Parts / Sig Sauer / Sig Sauer MCX-Spear LT Upper/Conv. Kit 7.62 X 39 16 Barrel
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Sig Sauer MCX-Spear LT Upper/Conv. Kit 7.62 X 39 16 Barrel

Sig Sauer MCX-Spear LT Upper/Conv. Kit 7.62 X 39 16 Barrel

Lowest Price
$1,699.99
MSRP
$1,699.99
Savings
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In Stock at
1 Stores
Updated
Jun 28, 2026

Specifications

Brand
MPN
UAMCX-762R-16B-LT-BLK
UPC
798681682560

Description

Sig Sauer MCX-Spear LT Features The MCX-Spear LT kit introduces a suite of advanced features that redefine the capabilities of the modern rifle. Its dual rod recoil assembly eliminates the traditional buffer system facilitating a more compact and streamlined design while enhancing reliability. The inclusion of an M4 adapter not only expands stock configuration options with Pic rail folding stock capabilities but also underscores the kit s emphasis on modularity and user customization. An adjustable gas system allows for fine-tuning particularly beneficial for suppressor use ensuring optimal performance across varying operational conditions. The quick-change barrel design is a standout innovation enabling shooters to swiftly adapt their rifle s caliber and barrel length to meet specific requirements or preferences. Coupled with a gas piston system that minimizes carbon fouling this kit is engineered for endurance designed to perform flawlessly through 20k rounds before necessitating part replacements. Sig Sauer MCX-Spear LT Specifications Model: SIG MCX-SPEAR LT Caliber: 7.62x39 Barrel Length: 16 Overall Length: 24.75 Weight: 5lbs 1.9oz Barrel: Nitride Coated Cold Hammer Forged Barrel Rifling Type: Hammer Forged Twist Rate: 1:9.5 Operating System: Gas Piston Muzzle Device: 3-Prong/SIG Suppressor QD Muzzle Thread Pitch: 5/8-24 Handguard Length: 13.3 Handguard Inside Diameter: 1.48 Handguard Material: Aluminum Receiver Finish: Black Anodized Bolt Carrier Group Included: Yes Bolt Carrier Finish: DLC Charging Handle Included: Yes Forward Assist: Yes Free Floated Handguard: Yes
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