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9/22/2017 12:11:25 AM
Posted: 9/19/2005 4:44:27 PM EDT
Can someone tell me what the difference is? How do I tell which one I have. Pics would be great! Thanks. Michael.
Link Posted: 9/19/2005 5:30:52 PM EDT
Simple, looking forward from the rear, the bolt carrier on a full circle carrier is enclosed like a full circle. A half circle bolt carrier is just that, a half circle. The bottom of the carrier is open.
Link Posted: 9/19/2005 8:01:33 PM EDT
What is the advantages to having a full circle carrier? It seems like they are a hot item. Thanks for the response. Michael.
Link Posted: 9/19/2005 9:42:51 PM EDT

Originally Posted By Magical_Merlin:
What is the advantages to having a full circle carrier? It seems like they are a hot item. Thanks for the response. Michael.




source quarterbore.com website link


This pic should explains it much better. The advantages of the full circle carrier adds more weight to the carrier which increases it's force to reduce or eliminate failures in the cycling of the BCG.

The best full circle carrier is the M16 because the rifle was originally designed to use that carrier.

M16 bolt carrier are legal to use and are now being issued by manufacturers such as Colt.


Ref Colt M16 Carriers thread link
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