LMT Enhanced bolt

[QuietShootr]

What's the point? What does this bolt give you that a new MP Colt bolt doesn't, other than being slightly easier to clean?

[dubb-1]

There is no point. The standard bolt, with the addition of Crane's O-ring, works perfectly.

[C4IGrant]

According to LMT, the Enhanced bolt has Re-enforced lugs and a dual extractor spring system. The Enhanced carrier has a third gas vent hole to help with pressure. I personally have one one of these for awhile and not had a problem. I have also had several of them returned.

I would say that if you feel that you would benefit from it then get it, but generally speaking, you don't need it.


C4

[Aubrey]

Some have had issues with the LMT enhanced BCGs in 10.5" uppers. They were designed for the 14.5" uppers, not the shorties.

[AR15barrels]

[QuietShootr]

I know what they look like, I have one. I just don't see what they offer over a MP Colt bolt.

[bobsolla]

thanks for sharing the picture!it really helps to understand the concept!

[BufordTJustice]

Have any of you used the enhanced BCG and bolt with a mid length gas system and A5 receiver extension ?

Kinda. I have used the enhanced carrier, std LMT bolt, A5 system, and a BCM 14.5" middy.

Close enough?

I have a thread in the technical forum. Look in my post history.

Sent from my SPH-D710 using Tapatalk 2

[AR15barrels]

What I meant was, maybe the smaller port, and enhanced carrier would slow the bolt down enough to work.

The smaller gas port already slows the carrier down.
If the gas port is too small, the upper already won't function.
Going to an LMT enhanced carrier would slow the carrier down even more, not allowing enough energy to transfer to the carrier before the bullet leaves the muzzle.
That would just about guarantee non-function.

[EzGoingKev]

Randall,

At first thought one would think that would be the case but in the ultimate SBR thread it worked the opposite IIRC.

I think it was the revised cam tunnel timing that made it function.