Building an upper

[THT]

These are my components:

CMMG lightweight barrel
YHM free-float rail
YHM low-profile gas block
BCM upper w/ dust cover and forward assist assembled

Is assembling it a matter of putting the barrel in the receiver, tightening the barrel nut, installing the gas tube in the gas block? Or am I oversimplfying this?

[tactical1]

Nope - looks like you're right on target; proper moly on the barrel nut, proper torque on the barrel nut - critical alignment of the gas tube through the upper -there is a pin/drill bit that helps to make sure the barrel nut is correctly positioned - and you should be good to go

Coupla other threads on the importance of using the proper moly on the barrel nut and proper torquing.

Hope others will comment as well

Enjoy

[motoman]

what he said. thats about it. ar's the easiest out of several assault and battle rifles to put together yourself.

[MMcfpd]

Your probability of success shoots way up if you use a receiver vise block.