The lwrci di is made with the same craftsmanship and design excellence that comes with every lwrci firearm.The lwrci di delivers "keyless" bolt carrier design; cold hammer forged smooth barrel; magpul moe+ grip; modular, one piece free-float rail; ambidextrous charging handle; angled ergonomic fore grip w/qd sling point and ambi lower receiver is compatible with the rest of our ic family, you can upgrade your di to our flagship, piston-driven ic just by switching out the upper.Caliber: 300 BlackoutBarrel Length: 16.10"Capacity: 30+1Oal: 32"- 35.25"Weight: 6.60 lbsStock Description: 6 PositionMuzzle: A2 Birdcage Flash HiderSights: NoneBarrel Description: ThreadedTwist: 1:7"Barrel Length Range: 16" to 16.99"Weight Range: 6 lbs to 6.99 lbsHand: AmbidextrousStock Finish Group: BlackMetal Finish Group: Blued/Black