Joshysquash81
New member
I've never built an AR before but I've watched enough videos and read enough material I have a pretty good idea how its done. Only thing I'm not sure of is what is and isn't interchangeable with the .223 and 243 wssm AR. I know the bolt and barrel but what else. Basically I'm asking what do I need different than a normal AR 15 build to build one in 243 wssm. Thanks for the advice.