CZ 600+ TRAIL SpecificationsManufacturer: CZModel: 600+ TRAILAction: BoltCaliber: 7.62x39mmBarrel Length: 16.2"Barrel: Cold Hammer-Forged, Semi-Heavy, ThreadedBarrel Material: SteelBarrel Finish: Black Nitride (BobOx)Rate of Twist: 1:9.5"Grooves: 4Thread Pattern: 5/8x24Receiver Material: Aluminum (Duralumin)Receiver Finish: Black NitrideReceiver: Integrated Picatinny RailHandguard: Free-Float M-LOK AluminumStock: PDW-Style Folding, 4-Position TelescopicStock Finish: BlackGrip: AR-15 Compatible with Interchangeable BackstrapsTrigger: Two-Stage Adjustable, 4 Settings, 2 to 3.5 lbs.Safety: 2-Position, CZ BREN 2-StyleMagazine Release: CZ BREN 2-StyleMagazine Compatibility: AR-15, CZ BREN 2, CZ BREN 2 MSOverall Length: 27.16" to 35.03"Length of Pull: AdjustableWeight: 6.24 lbs.Capacity: 10+1Sights: NoneAccuracy Guarantee: 2 MOA at 100 yds (5-shot, match-grade ammo)Barrel Design: User-Interchangeable