Product DescriptionThe Primary Weapons Systems (PWS) MK116 MOD 2-M upper is built around the PWS long-stroke piston system to deliver reliable operation and smooth performance in a premium AR-15 compatible upper receiver. This complete upper features a 16.1 inch .223 Wylde barrel with a 1:8 twist for versatile ammunition compatibility, paired with the PWS FSC 556 muzzle device. A free-float PicLok handguard lets you mount accessories using either Picatinny or M-LOK interfaces, while the forged 7075-T6, anodized upper provides a durable, hard-use foundation. This upper includes a Radian Raptor ambidextrous charging handle for fast, intuitive manipulation from either side.Product Highlights PWS long-stroke piston operating system for enhanced reliability and cleaner running under sustained use 16.1 inch .223 Wylde barrel with 1:8 twist for broad projectile compatibility and balanced performance Free-float PWS PicLok handguard supports both Picatinny and M-LOK accessory mounting Forged 7075-T6 anodized upper receiver construction for strength and corrosion resistance Includes Radian Raptor ambidextrous charging handle and PWS FSC 556 muzzle deviceSpecs Brand: Primary Weapons Systems Product Type: Complete upper receiver Model: MK116 MOD 2-M Compatibility: AR-15 Caliber: .223 Wylde Barrel Length: 16.1 in Twist Rate: 1:8 Muzzle Device: PWS FSC 556 Handguard: PWS PicLok 15.05 in (free-float) Operating System: PWS long-stroke piston Upper Construction: 7075-T6 forged, anodized Charging Handle: Radian Raptor ambidextrous Finish/Color: Black Listed Muzzle Velocity: 2980 fps UPC: 811154033239 Manufacturer Part Number: MK1-M2U-223-16Disclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product's manufacturer.