Help with a Colt 6920

[bluzharp]

That price is as low as I have ever seen ,the latest one's are rumored to have small pins and a Full circle M16 BCG . great rifle ,your going to love it . now when people tell you thier rifle is as good as a Colt for less money you can smile and say nothing and just keep grinning it will drive them nuts . I stan corrected Knesek has the lowest price $1210.00 .

Hi folks, --my first post. I'm new to AR's, and have really enjoyed all the info here. I bought a NIB le6920 in '05 that has the older "C" BCG. How can I tell which size pins it has, and is there a better, or more preferable size, large or small?

[Haji]

Is your trigger bad enough to warrant replacing it? I'm the first guy to admit I'm all about a nice trigger job, but if the AR is gonna be a "fighting" rifle, rather than a benchrest or match rifle, even a really bad trigger is probably preferable in terms of durability to a match trigger. Do what ya want with it, its your gun, but I don't think its worth replacing...and I'll guarrantee the trigger in my carbine is worse than yours out of the box.

[Safetyhit]

Hi folks, --my first post. I'm new to AR's, and have really enjoyed all the info here. I bought a NIB le6920 in '05 that has the older "C" BCG. How can I tell which size pins it has, and is there a better, or more preferable size, large or small?

Most "newer" 6920's, likely including yours, seem to have the larger .170 pins. But, some have said that they got them with the smaller pins. Someone else here will have to tell both you and I what the benefit of the smaller size seems to be.

[ST911]

I have about 200 rounds through my Colt 6920. Great gun except for the gritty 7 3/4 trigger pull.

Another 1000 rounds or so of dry and live fire will settle that trigger in nicely. My 6920s break clean at about 5lbs+/-.

[AR15barrels]

I bought a NIB le6920 in '05 that has the older "C" BCG. How can I tell which size pins it has, and is there a better, or more preferable size, large or small?

You would have to remove one of the fire control group pins.
Small pins measure around 0.155"
Large pins measure around 0.169"

The small pins are more preferrable because it gives you a wide range of available parts as well as easy compatability if you were to need to borrow spare parts in the field to keep a gun running.

Every maker of AR-15's uses small pins EXCEPT for Colt who uses large pins on guns made to be sold to the civilian market.

The large pins are to keep you from installing an M16 fire control group.
There is no other good reason for them.

Colt guns made for the military use small pins.

[koalorka]

I've got a question regarding the BCG. My carbine came with a semi-circle bolt carrier with an unshrouded firing pin. I also noticed an additional forged "fence" inside the lower receiver, could I still use an M16 BCG?

[Robb Jensen]

I've got a question regarding the BCG. My LE6920 came with a semi-circle bolt carrier with an unshrouded firing pin. I also noticed an additional forged "fence" inside the lower receiver, could I still use an M16 BCG?

You can use an M16 carrier as long as you don't have the raised hardened block protruding up from your lower receiver. If there's just the wall of aluminum between the rear takedown pin and disconnector then it won't interfere.

[koalorka]

No block just the fence which is flush with the side walls. Thanks.

[Sonny]

You would have to remove one of the fire control group pins.
Small pins measure around 0.155"
Large pins measure around 0.169"

The small pins are more preferrable because it gives you a wide range of available parts as well as easy compatability if you were to need to borrow spare parts in the field to keep a gun running.

Every maker of AR-15's uses small pins EXCEPT for Colt who uses large pins on guns made to be sold to the civilian market.

The large pins are to keep you from installing an M16 fire control group.
There is no other good reason for them.

Colt guns made for the military use small pins.

Thanks for the info. I'm new and this is the first time I've seen this explained in full. Appreciate it.
Sonny