Bolt carrier question...

[Steve357]

Are 223/556 and 6.5 bolt carriers interchangeable? I have a nickeled carrier I'd like to use in my Grendel.....

[Drifter]

Yes

[leopard6.5]

Steve357: Yes but all .223/5.56 carriers are not the same.

There is a difference between an AR-15 and a M16 carrier.
The M16 carrier has more mass( weight) than the AR-15 carriers and thus the M16 carrier helps to slow down the movement when fired.
This is especially helpful when it comes to the Grendel as sometimes it is over-gassed.

It's best to use the M16 carrier and a buffer weight that is the same as a regular rifle length buffer.

Good Luck and welcome to the horde.

Lee

[Whelenon]

Steve357: Yes but all .223/5.56 carriers are not the same.

There is a difference between an AR-15 and a M16 carrier.
The M16 carrier has more mass( weight) than the AR-15 carriers and thus the M16 carrier helps to slow down the movement when fired.
This is especially helpful when it comes to the Grendel as sometimes it is over-gassed.

It's best to use the M16 carrier and a buffer weight that is the same as a regular rifle length buffer.

Good Luck and welcome to the horde.

Lee

Ditto on what Lee posted, with the Grendel a heavier BCG and recoil buffer are advantageous.

[vfrdrvr]

The advice on the heavier bolt carrier is good. I would add that you may want to look into an adjustable gas block. I have one on my 18" and it was really useful when setting the gun up.

[fanofflyn]

But you have to consider, any single part that can be used in full auto, can be illegal, although it takes 6 parts to make a semiauto a full auto. Ownership of one part can show intent to manufacture a full auto. The bolt carrier is the one piece that is not clear, but I won't own a M16 carrier because I don't want to bring any doubt into the scenario.

[leopard6.5]

fanofflyn: I remember reading here before and I'll keep looking for the post, that the fed made an exception for the bolt carrier so using an M16 carrier is not considered a full auto part.

When I find the post I'll post it since it also had a copy of the fed's ruling.

Lee

[Drifter]

But you have to consider, any single part that can be used in full auto, can be illegal, although it takes 6 parts to make a semiauto a full auto. Ownership of one part can show intent to manufacture a full auto. The bolt carrier is the one piece that is not clear, but I won't own a M16 carrier because I don't want to bring any doubt into the scenario.

M16 bolt carrier is not illegal for use in AR-15:

http://www.gandrtactical.com/images/archive/ATF%20M16%20Letter.pdf

[Steve357]

Thanks for the info, I'll take all of it under advisement....I cant do the adjustable gas block, It's a mid-length with a rifle length guard with a low profile gas-block....

[leopard6.5]

Thanks Drifter for finding that about the M16 carriers. I knew I had seen it somewhere.

Steve: There is a thread on the forum about a front adjustable gas block so you could use the rifle length handguard with your mid-length gas system.

Here's the link: http://www.65grendel.com/forum/showt...w-front-access

Good Luck.

Lee

[fanofflyn]

Hey thanks for the info on the bolt carrier. I have always been a little paranoid about big brother.

[sneaky one]

I believe all the AA carriers, in their uppers are M- 16 style/ wt. My AA upper came with one. Totally legal.

[LRRPF52]

There are plenty of manufacturers who only use M16 carriers, and they are well-advised legally. DD, BCM, Spike's, Noveske, CMMG and others provide this as standard. None of them are in the business of going out of business.

[pinzgauer]

There are plenty of manufacturers who only use M16 carriers, and they are well-advised legally.

I've been told Colt has shipped M-16 carriers in it's semiauto Civvy/LE carbines for years

[Variable]

I've been told Colt has shipped M-16 carriers in it's semiauto Civvy/LE carbines for years

Yes, I have received some.