First AR!

I just ordered the parts I needed to finish my build. With any luck I'll be at the range next weekend zeroing the sights.

My carbine is going to be a BCM/LMT mixmaster. Here are the parts I have -LMT complete lower
BCM complete 16" carbine upper
BCM handguards
BCM charging handle
BCM bolt carrier group
LMT BUIS

Can't wait. I now have the pistol (1911) and carbine checked off my list. I only have my shotgun (Remmy 870) and MBR (M1A)to go.
 
The UPS man dropped off the last of the parts I needed this afternoon. Here's my completed rifle. Sorry for the poor picture, but I only had my camera phone on hand.

lmtbcmar.jpg
 
Wolf_1989 said:
I've already decided my next AR15 will be a midlength, probably with an upper by either LMT or BCM.

The standard 1/9 twist many AR's have works well for me on a 20" barrel, but for a middy or carbine I think I'd rather have the current USGI 1/7.
Click to expand...

The twist rate has nothing to do with barrel length, and everything to do with the weight (actually length, but it's a function of weight) of the projectile.

1:9 is good for bullets up to 62 grains. 1:8 is the best rate for bullets from 55 to the mid-80s, and should be your pick if you have the choice.

The military went with the 1:7 because the 1:8 is ideal for the 62 grain M855, and the 1:6 is ideal for the super long (103gr?) 800 meter tracer ammo, so they split the difference.



kamagong said:
The UPS man dropped off the last of the parts I needed this afternoon. Here's my completed rifle. Sorry for the poor picture, but I only had my camera phone on hand.
Click to expand...

Nice rifle, LMT makes a good gun.
Is that rear BUIS the one that is basically the rear end of an A2's carry handle sight? Can't tell from the pic.
 
Cpl Punishment said:
Nice rifle, LMT makes a good gun.
Is that rear BUIS the one that is basically the rear end of an A2's carry handle sight? Can't tell from the pic.
Click to expand...

Thanks. This carbine is actually a LMT/BCM mixmaster. The rear sight is a LMT, and you're correct, it's basically a chopped off carry handle.
 
I am actually about to get my first AR as well, im going to a Daniel Defense flat-top Upper (as made by PK firearms) chrome lined and the barrel has a 1:7 twist, and a R-Guns lower with mil-spec buffer tube and Magpul CTR stock, and Magpul MBUS. Im pretty excited and I have been saving up my tax return!
 
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