Build question regarding buffers and BCG

[crusader377]

I'm in the process of completing my 1st build. I'm building a 14.5 inch lightweight carbine. I already built my lower and it has an H buffer. My final purchase is the bolt carrier group and charging handle. I was orginally thinking of getting a BCM M16 BCG but I have an opportunity to pick up a LMT AR15 group for about $30 less than the BCM.

My question is will the LMT run well in the configuration that I'm building or should I just stick with the BCM?

Note: I'm currently a civilian and there is no chance that this upper will ever be used with a select fire lower.

[Hmac]

If it were me, on a 14.5 inch carbine, I'd save the $30, get the LMT, and spend it on an H2 buffer.

As to charging handle, I'd get the new version of the BCM Gunfighter handle (such as what Noveske sells).

[Iraqgunz]

Personally you should always use the correct BCG when doing a build. That means an auto carrier. Neutered carriers have no business anywhere at all.


I'm in the process of completing my 1st build. I'm building a 14.5 inch lightweight carbine. I already built my lower and it has an H buffer. My final purchase is the bolt carrier group and charging handle. I was orginally thinking of getting a BCM M16 BCG but I have an opportunity to pick up a LMT AR15 group for about $30 less than the BCM.

My question is will the LMT run well in the configuration that I'm building or should I just stick with the BCM?

Note: I'm currently a civilian and there is no chance that this upper will ever be used with a select fire lower.

[luckyguy1]

I have run all styles of bolt carriers in all style of guns.

maybe I've just been lucky but I haven't run into any non-magazine failures.

I have run the totally gutted Colt half carriers all the way to full auto carriers,, the shortest barrel I have is a 10.5 and I DO run it now with a BCM full auto carrier, but that's because I hate the Colt half carrier, (it's just wrong).

I haven't run into any issues with regard to semi or full auto carriers.

maybe if you had a problem child of a gun then options are what you need, but until you determine if you have any issues there is nothing wrong with a good quality semi auto carrier.

[Evil Bert]

I have always felt that the "full auto" is misleading for most out there. When someone is planning on building an AR-15 for the first time, they see M16 carrier and assume it is either not legal, or not the proper carrier. I agree that the so called AR-15 carrier has no place in this world. The AR-15 carrier is considered the "standard" carrier when they are not standard. They are modified from the standard to support the civilian version of the platform which is semi-auto.

I know most of us use the FA in reference since we consider the alternative the SA. Well enough ranting.

To the OP. Always go with a M16 carrier and use an H2 buffer. You will be glad you did.

[shadow65]

I also use M16 carriers. H2 buffers on 14.5".
The rifle was designed to use an M16 carrier. Why change it?
$30 in the expense of the build isn't much to have the correct part in my opinion.

[crusader377]

Thanks everyone for your help. You all convinced me to stay with my orginal plan for a M16 group. Will pick up either a BCM, DD, or LMT M16 BCG.

[BufordTJustice]

Thanks everyone for your help. You all convinced me to stay with my orginal plan for a M16 group. Will pick up either a BCM, DD, or LMT M16 BCG.

That's GTG. And, as others have said, look into an H2 buffer as well.

[strambo]

I put a semi LMT BCG in my 14.5" Middy. It was only $105 and the firing pin is fully shrouded. What is left to be an issue? The slight amount of weight from a slightly longer rear section? The LMT AR15 carrier isn't anything like the Colt.

As far as saying the rifle was designed to have an M16 carrier...well the M16 was. A 14.5" mid-length gas barrel is quite a ways from that.

I'm not saying a FA isn't better...just wondering why in quantitative terms? (assuming the firing pin is fully covered).

[crusader377]

Thanks everyone for your help. Ordered a BCM BCG and charging handle and that is the last component for my build. Will initial run my rifle with my spare carry handle until I figure out which BUIS and Optic I want to use.