BCG'S


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BIGRETIC
March 1, 2009, 06:56 AM
I have a Bushie m4gery.It has run flawless(besides wolf ammo...but thats another story)I am looking to buy a BCM BCG(when in stock of course).For backup.Does this solve some of the "perceived" problems w/ the Bushie?I know the Colt fanboys HATE the Bushie but I already have a 1400$ gun...it's a SA M1A what I'm looking for is a backup.In opinion,is LMT just as good?

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Timradcliffe345
March 1, 2009, 01:29 PM
Stick with BCM and LMT BGCs.

A quality BCG (BCM or LMT) will go a long way towards ensuring reliablity.
Also, ensure that your castle nut is staked properly.

I'm a COLT 'fan boy'; however, steps can be taken to make the 'mediocre' brand AR15 rifles more reliable. Good Luck!

KW
March 1, 2009, 02:02 PM
Another "right now" option is to pick up one of the bolt upgrade kits for a couple bucks. They have a new spring, insert and rubber o-ring to help prevent extraction problems. Then when you have the chance, pick up a spare bcg, and if your original ever gives you a problem down the road, toss it and swap in the new one.

Rubber_Duck
March 1, 2009, 02:34 PM
Yes, a BCM or LMT BCG will improve your rifle's reliability. I currently run a BCM full-auto BCG in my Bushmaster as well and kept the original as back-up/spare.

A lot of the things that Bushmasters lack according to "the chart" can be fixed with a BCM bolt carrier group.

Eustachius234
March 1, 2009, 06:57 PM
Is there any difference between the BCG for a carbine as opposed to a rifle?

Eustachius234
March 1, 2009, 07:31 PM
Also has anyone any experience with LMT's Enhanced Bolt Carrier Group?

This is their claim: "Includes both our enhanced carrier which incorporate a longer dwell time allowing barrel pressure to be greatly reduced and promoting easier extraction, and our enhanced bolt which has a more resilient coating and stronger heat treat, as well as the cartridge case being fully supported by the bolt face."

I was wondering whether it was all that it supposedly is, and if it is better than a Colt & the standard LMT BCG?

RyanM
March 1, 2009, 08:50 PM
Also has anyone any experience with LMT's Enhanced Bolt Carrier Group?

From what I've heard, it causes more problems than it solves, and is more finicky about gas port sizes and action spring weight. Purely a gimmick.

Anyway, to the original question, I second that a BCM bolt upgrade kit will also help immensely. Also, if you have a torque wrench and the tools necessary to stake some screws, you can tighten and re-stake the screws on your Bushmaster gas key yourself. That plus a BCM bolt upgrade kit will give you a BCG that's nearly as good as BCM's and LMT's. The only thing you lose is the fact that your bolt hasn't been individually high pressure tested, or magnetic particle inspected.

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