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The MCX Rattler LT SBR comes with a collapsible and folding stock, which enhances its compactness and versatility in various tactical situations. The rifle's finish is black, giving it a tactical and modern appearance.

This rifle is equipped with a 1-in-5" rate of twist in the barrel, optimized for the .300 AAC Blackout caliber, ensuring excellent bullet stabilization and accuracy. The rifle is optics-ready, allowing for the installation of a wide range of sights and scopes to suit different operational needs. However, it does not come with factory-installed sights.

Specifications:

Manufacturer: SIG SAUER
Family: MCX Series
Model: MCX Rattler LT SBR
Type: NFA - Short Barrel Rifle
Action: Semi-Auto
Caliber/Gauge: .300 AAC Blackout
Finish: Black
Stock: Collapsible / Folding Stock
Barrel Length: 6.75"
Overall Length: 24.75"
Rate-of-Twist: 1-in-5"
Capacity: 30+1
Number of Magazines: 1
Magazine Description: 30 rd. Magazine
Sights: Optics Ready (None Included)
Weight: 5.8 lbs.
Additional Info: M-LOK Aluminum Handguard
Additional Info: Fully Ambidextrous Controls

SKU: GAG_SGRMCX300B6BLTSBR

Browse for more Sig Sauer SBR nfa.

Rebates for Sig Sauer brand

Exp. date: 01.09.2026
Buy a New Applicable SIG SAUER Handgun Between 06/01/26 and 08/31/26, Receive One (1) SIG SAUER FOXTROT-EDC COMPACT Flashlight. (SKU: SOFEC002)
*Purchases of all SIG SAUER P365, P320, M17-M18, P210, P211, P220, P226, P229 and 1911 models are included in this offer. All other SIG SAUER Handguns are excluded from this promotion.

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