M400 TREAD V2 5.56MM BLK 16" RM400-16B-TRD-V2 Manufacturer Model Number: RM400-16B-TRD-V2 Manufacturer: SIG SAUER Model: M400 Tread Caliber: 223 Rem | 5.56 NATO Type: Rifle Item Type: Firearm Firearm / Accessory Action: Semi-Auto Firearm / Accessory Capacity: 30 + 1 Finish: Black Sights: Optics Ready Stock Frame Grips: Collapsible / Folding Stock MAGPUL SL-K Telescoping Stock Magazine Quantity and Description: 1 30 rd. Overall Length: 30.8" Weight: 7 lbs. Shipping Weight: 8.6 Feature: SIG Matchlite 2 Stage Trigger Feature: M-LOK Enhanced Handguard Optic Adjustable Objective: false Optic Reticle Illuminated: false