MARC Compatiblty

dps8204

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Joined: Mar 2009

Posts: 444

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TX, USA

Posted: 4/5/2026 8:05:11 PM EDT

Anyone have information on whether the MARC will function properly with the older style RA140 that does not have the springs on the bottom? No reply from Cornfire.

Never Attribute to Conspiracy What Gross Incompetence or Negligence Will Explain.

ELittlefield

Member

Joined: Dec 2023

Posts: 9514

EE: 100% (7)

USA

Posted: 4/6/2026 4:29:55 AM EDT

[#1]

I'm not actually familiar with a version of the Rave 140 that lacks springs on the bottom. I have an older Rave 140 that IS compatible with the MARC, which is NOT compatible with an Atrius. Detailed here in the second reply, post #2. There's a change in the bottom hammer geometry that happened at some time.

https://www.ar15.com/forums/ar-15/The-Atrius-and-Rise-Armament-Rave-140-combination-reference-thread/130-793052/

JohnGA

Team Member

Joined: Nov 2001

Posts: 7158

EE: 100% (641)

GA, USA

Posted: 4/6/2026 8:12:18 AM EDT

[#2]

Just to mention - Cornfire is changing ownership per their website. All sales are on hold until completed.

yin shui si yuan
Your life is an occasion, rise to it
In time we will be dancing in the streets all night.

JohnGA

Team Member

Joined: Nov 2001

Posts: 7211

EE: 100% (641)

GA, USA

Posted: 6/13/2026 7:58:37 PM EDT

[#3]

Ran one of mine today with the RAV140 trigger. Dang the can got hot fast!

yin shui si yuan
Your life is an occasion, rise to it
In time we will be dancing in the streets all night.

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