Grid Defense 10.5" 5.56 Suppressor Series Upper Receiver 

Upper Specifications

• Mil-Spec Upper Design
• Machined from 7075-T6 Forging
• Mil-Spec dust cover and forward assist
• Made in the USA
• 15.2" Free Float M-LOK Suppressor Series Handguard
• Oversized handguard designed to recess a suppressor
• 1.65" ID

Barrel Specifications

• 10.5" Government Profile Barrel
• 4150 Chrome Moly Vanadium
• Chambered in 5.56x45
• Black Nitride Finish
• 1:7 Twist Rate
• 1/2x28 Thread Pitch
• .750 Carbine Length Gas System