Receiver set featuring oversized Magwell, big bore ejection port, thermal fit upper and right-side bolt release. Everything you need to run fast and efficient through any obstacle that gets put in your path. Aggressive to the core, this edgy design is slim and trim with a huge Magwell for extremely fast transitions. These uppers are thermal fit, meaning the inside diameter for barrel extension is slightly undersized for a tighter fit to the barrel and a more accurate rifle. Please use a heat gun to warm up threaded bore of receiver if barrel extensions is too tight. Come in Black anodize. 

• 7075-T6 Billet Aluminum
• 14 ounces
• Multi Caliber 
• Large Magwell for Fast Reloads
• Large Integrated Trigger Guard
• Right Side Bolt Release
• Type III Class 2 Hard Anodizing
• Thermal Fit Upper Receiver
• Oversized Ejection Port Window
• MIL-STD 1913 Rail for Mounting Optics and Accessories
• Uses Threaded Roll Pins (Titanium)
• Titanium Tension Screw
• No Forward Assist
• Made in USA