This rifle build kit includes: 

-Echo line rifle upper with; 

-Gen 2 Billet Upper without forward assist (Not Pictured)

-15” M-LOK Handguard 

-16” 416R Stainless Barrel

-1:16 Twist

-Adjustable Gas Block 

-5/8x24 Thread

-Thread Protector

-Dual Charging Handle 

-BCG 

-Lower Parts Kit 

-Buffer Tube Kit 

-M4 stock