im getting close to having all  parts to put this thing together..however i dont have mags...whats recommended?i see cp mags with blue followers all over the internet.are they any good?

they're the only mags on the market that I'm aware of.  Even the ones from Alexander Arms are CP mags

This is what is available:

Old C-Products
ACS- took over C-Products tooling
CPD (C Products Defense)- reformed company using new machinery
AR Stoner- made by one of the above (CPD, I think)
AA- made by one of the above (ASC, I think)

So basically CP lol
For what it's worth I've never had any issues with my mags.

Some time ago someone mentioned that 6.8 mags will work for 6.5... I have only heard it the one time... is there any truth to that?

IIRC, AA mags are cproduct, but have tighter QC

They were for a while when that was the sole source. Now they are ASC.

AA runs their mags through a testing apparatus to ensure proper feeding, and rejects those that fail, so customers only get ones that have gone through that type of testing process after the manufacturer.

My ASC mags work well, no issues to report.

I have ASC and C Prods 10, 15 and 25 round mags.  The 25 rounders from both companies do not work for me.  The ASC 15 rounders have been very reliable and the C prods have been fine in my gun but not my buddies.  Both companies 15 rounders only hold 14.7 rounds.  The 10 rounders work fine and hold 10 rounds.

ok good info guys..thanks

Most people have found that the 17rd mags (often really only 14-15rds) don't feed properly when you load them past 7 rounds. These are the ones that look like a 20rd 5.56 magazine.

AA actually specified a curved body 17rd mag, and the original C Products sent them a straight one that didn't function, so AA never carried them since they didn't work.

When I use them, I only load 5 rounds in them.

Also, my 10rd CProducts Defense mags hold only 9 rounds, but function 100% so far, over the past 2 years.

I have watched the 25rd mags run through Grendels for 3 days straight, with all-day shooting each day without any malfs.

For reliability with the PPC-based cartridges in the AR15, it helps to radius the edge of the ejector itself, and make sure your feed ramps are blended and polished.

Did you do the feed ramps there?  I have not had any issue with feeding but I think it coul only help accuracy if you aren't slamming your bullets ino the sharp edge and cutting lines down the bullet

Yes, I did that one. This is the rifle it was in, with a CProducts 17rd magazine as well.

No problems out of my AR Stoners, ACSs, or C Products.  Some don't hold as many rounds as advertised but that's common.

That 17 round mag looks same size as my 15 round mags that hold 14.7 rounds