Lower ReceiversMid-Range

CMMG

CMMG Mk4 Lower Receiver (9 ARC Mags)

Mil-spec AR-15 lower setup for CMMG 9 ARC conversion magazines and 9mm Radial Delayed Blowback uppers.

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Quick Specs

Price: $180
Weight: N/A
Brand: CMMG
Category: lower-receiver

Features

•Standard AR-15 / Mk4 lower layout
•Uses CMMG 9 ARC conversion magazines
•Designed around CMMG 9mm RDB upper groups
•Forged 7075-T6 lower receiver family
•Standard carbine buffer and action spring setup

Capability Boosts

Reliability+1

Modularity+1

Recommended For

Duty/Patrol+2

Home Defense

Competition

Outdoor Defense

Compatibility Tags

family: pccfamily: ar-patternplatform: custom-ar-9caliber: 9mmmag-type: cmmg-arctrigger: ar-fcgstock-interface: ar-buffer-tubear9-system: cmmg-rdb

Compatible Platforms

Custom

Custom AR-9 (Build From Scratch)

Pairs Well With

Top matches

Custom

Custom AR-9 (Build From Scratch)

6 shared compatibility tags

Excellent

Thureon Defense

Thureon Defense 9mm Carbine

3 shared compatibility tags

Great

Aero Precision

Aero Precision EPC-9

3 shared compatibility tags

Great

CMMG

CMMG Banshee 9mm (Mk17)

4 shared compatibility tags

Great

Custom

Custom AR-15 (Build From Scratch)

2 shared compatibility tags

Great

Aero Precision

Aero Precision M4E1 Complete Rifle 16"

2 shared compatibility tags

Great

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Centurion Arms

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Add the CMMG Mk4 Lower Receiver (9 ARC Mags) to your build and see how it enhances your platform.

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