Mega or DD Lower?

[01tundra]

Your fine as long as you are not short stroking with some of the weaker ammo PMC and others. I wouldn't worry to much with the ejection pattern because it will start clocking forward the ejection pattern after 2-3k rounds.

I definitely learned something today - thanks . Is the change due to the parts getting broke in?

I may try one round of my Wolf 55 grain just to see if it will lock back....even though I hate the thought of one of those dirty rounds running through it .

FYI - I was referencing the graph in this thread when referring to the 4:30 pattern being borderline:

https://www.m4carbine.net/showthread.php?t=42660

[Thomas M-4]

I definitely learned something today - thanks . Is the change due to the parts getting broke in?

I may try one round of my Wolf 55 grain just to see if it will lock back....even though I hate the thought of one of those dirty rounds running through it .

FYI - I was referencing the graph in this thread when referring to the 4:30 pattern being borderline:

https://www.m4carbine.net/showthread.php?t=42660

I believe it is a combination after 500 rounds every thing is broken in. After that gas port erosion will be the other culprit. My rifle started out ejecting xm193 at the 4-4:30 position I am just over 3000 rounds and xm193 ejects at 3:00 now. I run LMT enh BCG, H-buffer , and the sprinco tactical buffer spring [blue].
Once it starts ejecting at 2:30 I will install an H-2 buffer to slow it back down some and after that it should be time for a new barrel.

[01tundra]

I believe it is a combination after 500 rounds every thing is broken in. After that gas port erosion will be the other culprit. My rifle started out ejecting xm193 at the 4-4:30 position I am just over 3000 rounds and xm193 ejects at 3:00 now. I run LMT enh BCG, H-buffer , and the sprinco tactical buffer spring [blue].
Once it start ejecting at 2:30 I will install an H-2 buffer to slow it back down some and after that it should be time for a new barrel.

Gotcha - thanks.

[Thomas M-4]

I definitely learned something today - thanks . Is the change due to the parts getting broke in?

I may try one round of my Wolf 55 grain just to see if it will lock back....even though I hate the thought of one of those dirty rounds running through it .

FYI - I was referencing the graph in this thread when referring to the 4:30 pattern being borderline:

https://www.m4carbine.net/showthread.php?t=42660

I believe that 55 grain UMC FMJ is weaker than wolf and PMC bronze is very close to wolf as far as feel goes.

[RogerinTPA]

Very nice weapon. Now all it needs is some Krylon....

Here it is, won't be able to get out to the range until this weekend.....

The upper and lower fit so well together that I can now feel a little movement in the CTR stock, when it was on the BM it felt solid. Not sure if I just got lucky or if all the BCM/DD combos fit so well together.......

BCM 16" lightweight middy upper
Daniel Defense LITE 12.0 rail
BCM Gunfighter charging handle (medium)
BCM BCG (auto)
Colt LPK
Colt receiver extension & castle nut
Sprinco "blue" spring w/ carbine buffer
Geissele SSA trigger
Daniel Defense QD rear sling attachment plate
Gear Sector front rail sling mount
Vickers padded sling
YH Phantom FS
Troy Tritium HK folding front sight
Troy Tritium Di-Optic folding rear sight
ACOG TA33G-H (w/ Butler Creek Blizzard lense covers - sizes 1 & 3)
Harris BRM-S bipod w/ Larue LT706 QD mount
Magpul CTR stock
Magpul MOE grip
Magpul AFG
Magpul Enhanced trigger guard
TangoDown rail covers

[01tundra]

Very nice weapon. Now all it needs is some Krylon....

Stay tuned for a little color

[01tundra]

Added a little color last night............

[culannmac]

I got my Grant built DD lower on Saturday. I got the Colt LPK and Magpul UBR installed. It's mated with my Noveske middie (basic with FSB and SWS rail). I haven't had a chance to take it to the range yet, but I'm very impressed with the build quality. My setup is heavy and very solid. I like heavy rifles (yeah I know, I'm gonna feel the pain in a carbine course - no pain no gain ) I could easily butt stroke some one, or use it as a club.

The only issue I have had is it will not drop my pmags.

I'll post pics when I can.

[michschi]

Added a little color last night............

Not going to lie, I love this look! Gorgeous! NOW I like your style! Don't mean to highjack!