Rock River Arms A2 National Match Upper Receiver Assembly with National Match 1/2x1/2 .030 Hooded Aperture Rear Sight Black AR0052ANMASY2

Rock River Arms Ar-15 National Match 2-Stage Trigger - .156" 2-Stage Trigger

Drop-in, match grade trigger provides a crisp, 4� to 5 lb., 2-stage, trigger pull to improve accuracy for competition or varmint shooting. Sear engagement point is located behind the hammer to reduce pull weight. Low mass hammer speeds lock time.... ... more

Rock River Arms Completed Upper Receiver National Match A4 .223/5.56mm 20 Inch Barrel 1-8 Twist 1/2-28 Thread Free-Float Handguard A2 Flash Hider

Rock River Arms Completed Upper Receiver National Match A4 .223/5.56mm 20 Inch Barrel 1-8 Twist 1/2-28 Thread Free-Float Handguard A2 Flash Hider. 223 Wylde Completed Upper then you've found yourself in the absolute right spot.. These AR15 Upper... ... more

Rock River Arms Completed Upper Receiver National Match A4 Half Trainer .22 Long Rifle 20 Inch Barrel 1-16 Twist 1/2-28 Thread Free-Float Handguard A2

Rock River Arms Completed Upper Receiver National Match A4 Half Trainer .22 Long Rifle 20 Inch Barrel 1-16 Twist 1/2-28 Thread Free-Float Handguard A2. 22 Long Rifle Completed Upper then you have turned up at the right place.. These AR15 Upper... ... more

Rock River Arms Completed Upper Receiver National Match A4 .223/5.56mm 20 Inch Barrel Competition Profile 1-8 Twist 1/2-28 Thread Free-Float Handguard

Rock River Arms Completed Upper Receiver National Match A4 .223/5.56mm 20 Inch Barrel Competition Profile 1-8 Twist 1/2-28 Thread Free-Float Handguard. 223 Wylde Completed Upper then you've come to the ideal spot.. These AR15 Upper Receivers through... ... more

Rock River Arms Completed Upper Receiver National Match A4 Competition Trainer .22 Long Rifle 20 Inch Barrel 1-16 Twist 1/2-28 Thread Free-Float

Rock River Arms Completed Upper Receiver National Match A4 Competition Trainer .22 Long Rifle 20 Inch Barrel 1-16 Twist 1/2-28 Thread Free-Float. 22 Long Rifle Completed Upper. These AR15 Upper Receivers through the skilled product specialists at Rock... ... more

Rock River Arms Completed Upper Receiver National Match A4 .223/5.56mm 16 Inch Barrel Competition Profile 1-8 Twist 1/2-28 Thread Free-Float Handguard

Rock River Arms Completed Upper Receiver National Match A4 .223/5.56mm 16 Inch Barrel Competition Profile 1-8 Twist 1/2-28 Thread Free-Float Handguard. 223 Wylde Completed Upper then you've come to the ideal spot.. These AR15 Upper Receivers through... ... more

Rock River Arms Completed Upper Receiver National Match A4 .223/5.56mm 20 Inch Barrel 1-8 Twist 1/2-28 Thread Free-Float Handguard A2 Flash Hider

Rock River Arms Completed Upper Receiver National Match A4 .223/5.56mm 20 Inch Barrel 1-8 Twist 1/2-28 Thread Free-Float Handguard A2 Flash Hider. 223 Wylde Completed Upper then you've found yourself in the absolute right spot.. These AR15 Upper... ... more

Rock River Arms Completed Upper Receiver National Match A2 .223/5.56mm 20 Inch Barrel 1-8 Twist 1/2-28 Thread Free-Float Handguard A2 Flash Hider

Rock River Arms Completed Upper Receiver National Match A2 .223/5.56mm 20 Inch Barrel 1-8 Twist 1/2-28 Thread Free-Float Handguard A2 Flash Hider. 223 Wylde Completed Upper then you've found yourself in the ideal spot.. These AR15 Upper Receivers from... ... more