Geissele BCG
Geissele Reliability Enhanced Bolt Carrier Group (BCG) for AR15 / M4 / M16

Geissele Reliability Enhanced Bolt Carrier Group (BCG) for AR15 / M4 / M16


Full auto rated
M16 Profile
8620 Carrier
C158 Bolt
H13 steel cam pin
Improved upper rails
Nanoweapon Chrome Nitride finish

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Geissele BCG Overview

Did Bill Geissele(Geissele BCG ) build a better mouse trap with the REBCG.  We think so.  There are other great bolt carrier groups, so why build another?  Not sure.  Probably because he could.  Maybe because Geissele is building everything else that makes a full rifle, so why not an enhanced BCG?

I gotta admit, Charlie was skeptical.  But this one looks impressive.  I am not sure we will win Charlie over from his go-to bolt carrier and bolt, but this one comes pretty close.

More Of Geissele BCG

Geissele spared no effort in design, craftsmanship, machining and materials.  The first thing that sticks out is that the extractor is a lighter colored steel, and stands out from the rest of the Bolt.  The next thing you notice is this is not a standard phosphated steel, but a slick coating.  You might be tempted to think Nitriding, or QPQ, or DLC, or Ion bonding.  These are all great coatings, but Geissele developed their own coating that is applied in a very different fashion,  No hot acid baths.  No vacuum chambers with positive and negative ions floating in space.  The coating is in the family of durable solid liquids.  Geissele calls it Nanoweapon coating, and the Nanoweapon coating has been a few years in the making and testing.  Sounds a lot like DLC with some marking buzz, but our assessment is that it is a solid offering.





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