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AR 15 Upper Receiver Assembly Video


This video will show you how to assemble your AR 15 upper from to its individual components. This video is designed for people that need to assemble their upper from either repairs or changing configurations. Even though this video features an AR 15, what we show you also apply to the AR 10 upper as well. 

AR 15 Upper Receiver Assembly – Background Information

The Armalite Rifle 15 (AR 15) is one of the most popular modern sporting rifle. The AR 15 is used for target shooting, hunting and competition. Its modern look makes people think that this rifle is a complex design and hard to work on. Our video series will show you that these are fairly simple design which makes them easy to work on. This video series concentrates on the AR 15 but the same methods work on the AR 10 upper receiver as well.

Don’t forget to check out our AR 15 upper receiver disassembly, AR 15 lower disassembly, AR 15 lower assembly and AR 15 field strip videos.

AR 15 Upper Receiver Assembly – Learn More

If you want to learn more about the tools used in the AR 15 Videos visit If you need more information about troubleshooting visit our AR Troubleshooting Guide at

AR 15 Upper Receiver Assembly – Video index:

Assembling the forward assist – 0:17

Installing the forward assist – 1:50

Installing the dust cover – 3:05

Assembling the barrel nut assembly – 4:14

Installing the barrel – 5:06

Installing gas tube and gas block – 8:53

Installing the flash hider – 12:04

Installing the bolt carrier group – 12:57

Installing the upper onto the lower – 14:01

Installing the handguards – 14:33

Installing the carry handle – 15:55

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