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Posted: 2/14/2009 3:09:17 PM EDT
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ok so i have a bushmaster xm15e2s
i had the complete A1 upper on it, sold it and bought a bushmasterA3 flat top upper complete BCG and all now i just put the new upper on my bushmaster lower, am i good to go or do i have to worry about headspace etc. the barrel is the same 5.56 1/9 Hbar so i can shoot .223 and 5.56 just curious about heaqdspace. thanks guys for your expert knowledge in advance! |
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Quoted:
ok so i have a bushmaster xm15e2s i had the complete A1 upper on it, sold it and bought a bushmasterA3 flat top upper complete BCG and all now i just put the new upper on my bushmaster lower, am i good to go or do i have to worry about headspace etc. the barrel is the same 5.56 1/9 Hbar so i can shoot .223 and 5.56 just curious about heaqdspace. thanks guys for your expert knowledge in advance! ??? So you have a complete new upper, and want to use your old lower? If it is this, then by all means, assemble on your lower and go use it. Or are you swapping upper receivers and using old barre? If it is this, then please look in the build it yourself threads for the proper info. http://www.ar15.com/forums/forum.html?b=3&f=4 |
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