6.5 Grendel: New bolt or BCG?

[Space Jam Darimon]

Hello,

I’m working on my first AR-15 build in 6.5 Grendel. I went with a CMMG barrel (#64DCF0C), now do I need to go with the CMMG BCG that they offer? Or am I able to just replace the bolt from a 556 BCG that was replaced in another rifle?

If either option is viable, is there any benefit to going on way or another?

 

[msgriff]

Carriers are interchangeable, but hopefully you're aware of the differences between a type 1 and type 2 bolt. Reusing a carrier would depend on whether it's still within spec. The safe bet is a new BCG.

 

[JS8588]

I'd personally just buy a 6.5 Grendel bolt and be done with it. JP Enterprises, Rubber City Armory, and Maxim are all good choices. Your existing carrier will be fine.

 

[6.5SH]

REXUS AR15 UltraBolt 6.5 Grendel / 6mm ARC Mk136 Type 2 Bolt

REXUS AR15 UltraBolt 6.5 Grendel / 6mm ARC Mk136 Type 2 Bolt

www.sixfiveoutfitters.com

 

[Space Jam Darimon]

hopefully you're aware of the differences between a type 1 and type 2 bolt.

I do, the fella from the LGS said it uses a type 2. While the tube it came in and CMMG’s website doesn’t say. I’ve reached out to them today and awaiting their response.

Reusing a carrier would depend on whether it's still within spec. The safe bet is a new BCG.

The carrier should be ok, it only had 500-600 rounds on it before it was upgraded.

Thanks for those recommendations, I’ll check them out.

 

[Dildobaggins]

Everyone and their brother sells BCGs for 6.5 grendel. You can interchange the bolt, but 2 is always better than 1. I've had a cheap aero precision 6.5grendel BCG with close to 1,000 rounds on it and no hiccups. If your looking for one on the cheaper side, this would work. They have a good reputation.

Toolcraft Black Nitride BCG 6.5 Grendel

A high-quality part any and every 6.5 Grendel build must-have, this Toolcraft BCG features the Black Nitride finish for extreme wear and corrosion resistance.

www.spicetac.com