The SU16 series is designed, engineered and crafted to be the perfect everyday Sport Utility rifle. Differing primarily in barrel length and stock configuration, these gas piston operated, semi-auto rifles accept standard AR-15 magazines, with some models that store two spare, proprietary magazines in the stock. The SU16CA offers a threaded, 16 inches barrel as well as all the other features of both the A and B models. Every SU16 comes with adjustable sights, integrated picatinny-style rail for mounting your favorite optic and AR-15 magazine compatibility in a lightweight package.Features: Adaptable, durable, modular Configurable - there are a few SU16 models and configurations to choose from to suit your needs, but all of them feature iron sights and an integrated Picatinny-style rail on top of the receiver to mount your favorite optic Utility - if you know anything about KelTec, you'll know that we like to keep things light and simple, the SU16 is an excellent choice for your go-anywhere 5.56 rifle Reliable - all of the SU16 models are gas-piston operated which keeps fouling to a minimum where the magic happens, thanks to the long travel of the bolt carrier, the SU16 series rifles shoot smooth, flat and reliablySpecifications: Series/Collection: SU16CA Action: Semi-Automatic Stock Type: Fixed Muzzle Type: Threaded Magazine Capacity: 10+1 Caliber/Gauge: 223 Remington/5.56x45mm NATO Twist Rate: 1:7" Orientation: Right Safety: Push Bolt Receiver Material: Steel Stock Material: Synthetic Stock Finish: Black Barrel Length: 16" Overall Length: 35.9" Weight: 4.7 lb Trigger Pull: 6 lb Folded Length: 24.9"