MCX RATTLER LT 5.56 SBR 7.75" RMCX-556N-7B-LT-SBR Manufacturer Model Number: RMCX-556N-7B-LT-SBR Manufacturer: SIG SAUER Model: MCX Rattler LT SBR Caliber: 223 Rem | 5.56 NATO Type: NFA - Short Barrel Rifle Item Type: NFA Firearm / Accessory Action: Semi-Auto Firearm / Accessory Capacity: 30 + 1 Finish: Black Sights: Optic Ready Stock Frame Grips: Collapsible / Folding Stock Magazine Quantity and Description: 1 30 rd. Magazine Overall Length: 25.75" Weight: 6.2 lbs. Shipping Weight: 7.5 Feature: M-LOK Aluminum Handguard Feature: Fully Ambidextrous Controls Optic Adjustable Objective: false Optic Reticle Illuminated: false