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6.8 SPC question

tireys

StealthMode223
Full Member
Minuteman
Mar 4, 2009
617
0
45
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Can I attach a 6.8 SPC upper to my regular Rock River LAR-15 Lower and not worry about cycling issues? I want to acquire a 6.8 SPC upper and it be interchangable with the lower receiver that I already have. Is this possible?
 
Re: 6.8 SPC question

I did just that. Stag 6.8 upper to Mega lower (previously had Rock River .223 upper)...works fine.
 
Re: 6.8 SPC question

Just needed to hear it from the folks that have done it and had success. I was pretty sure that it could be done but I also thought that there could be problems with cycling or wearing out buffer springs.
 
Re: 6.8 SPC question

Yeah, I got that part. The one I am looking at comes with mags and 200 rnds.
 
Re: 6.8 SPC question

Just make sure it comes with the bolt - I've seen a lot selling recently that don't and that is a hard find sometimes. Some of these guys on GB (and I don't know where it is you're getting yours), don't even mention that it's not a part of the package.