project completed...

[par-archer]

magpul moe stock, moe carbine handguard, mbus2, and trigger guard
milspec receiver extension and spring, h2 buffer
dpms lpk
bravo co m4 upper and mod4 charging handle
cmt f/a mpi bolt and carrier group
dd 1/9 chrome lined m4 barrel,
yankee hill hk flip up front sight/gas block and 5c2
mid west ind amib end plate...

about 250 rounds so far umc 223, win 556
some fte, ripped casings, more lube,
i need to shoot it more and run it wet more too...

10802

[trapshooter]

Very nice!
I thought I was completed after my first ar, now I now have three ar's and I'm still adding or changing within the three!
Thinking about that special fourth one too!

Have fun

Chuck

[Kickin-Ewoks]

What lower did you use? What did you mean by ripped casings and do you have any pictures of the cases?

If you use even a little lube you shouldn't be having problems.

[par-archer]

cmmg 223-556...
think round fired, cases had, where the extractor holds, been sheered...
dropped a cleaning rod down and they popped out fairly easily.

[Iraqgunz]

How did you arrive at the conclusion of your selection? Specifically the YHM gas block sight.

[par-archer]

I wanted a base to start with carbine, but without the normal stock and hand guard. It will change as my needs/preferences develop. As for the yanhee hill front sight, I liked the hk style front as I feel it gives me a more comfortable sight picture. If the yankee hill becomes problematic, I can swap it out with another more robust sight/gas block. This is an ever evolving process as what works for me is still being ironed out and tested. After a few more houndred rounds, we'll see what I need/want to change to make the gun more reliable. Good think I have this site and you lads for a knowledgebase...

[par-archer]

here are more...

[ContractSoldier]

Nice build

[BCmJUnKie]

I think IG was referring to why you didn't keep the "F" marked FSB and chose the YHM sight.

[bdiddle]

DD makes a 1/9 barrel?

[par-archer]

Ahh! I didn't go with the "F" marked FSB because I like the idea of folding the sight down. I plan on swooping up a H1. If it doesn't pan out, I can always switch to a "F" mark FSB, or low-pro gas block and cover it with a ff rail some other flip up front sight.

DD makes a 1/9. Bravo has them on sale. I know there was some issue about the gas port being too small, but well see if that is an issue.

[par-archer]

Barrel

[120mm]

YHM flip front sight fail
DPMS LPK fail
CMT BCG fail

For the same price, you could have a better quality carbine.

[jet80tv]

YHM flip front sight fail
DPMS LPK fail
CMT BCG fail

For the same price, you could have a better quality carbine.

Why fail on the CMT BCG? just curious, always heard they were gtg but never had one.

[amd5007]

CMT doesn't MPI all their bolts. You can specifically buy CMT MPI BCGs, but not all of them are.

[YWHIC]

YHM flip front sight fail
DPMS LPK fail
CMT BCG fail

For the same price, you could have a better quality carbine.

I think a PSA LPK is better.. of course an RRA 2 Stage or Stag (normal) LPK would be less gritty than a DPMS LPK.

Nice rifle OP.. I like the YHM Flip.. but the price is abit up for me. IMHO.

[par-archer]

I am not too worried about the lpk or yhm fip sight yet. After 1K rounds, I will reassess the parts. I want to wait because I might go w/ a ff handguard in the near future. I want to see for myself as this is a "learning" rifle. I gladdly accept input. Thanks!