Military Armament Corporation
MAC IX / MAC 5 30‑round Bolt Hold Open magazine with steel body and enhanced follower, compatible with MP5 platforms
MP5‑compatible 30RD BHO magazine for MAC IX and MAC 5, showing durable steel construction and reliable last‑round lockback design.
30‑round Bolt Hold Open magazine for MP5, MAC IX, and MAC 5 with enhanced follower for smooth feeding and fast reloads.
OEM‑style MP5 pattern 30RD BHO magazine featuring steel build, improved follower, and last‑round bolt hold open capability.
MAC IX / MAC 5 30‑round Bolt Hold Open magazine with steel body and enhanced follower, compatible with MP5 platforms
MP5‑compatible 30RD BHO magazine for MAC IX and MAC 5, showing durable steel construction and reliable last‑round lockback design.
30‑round Bolt Hold Open magazine for MP5, MAC IX, and MAC 5 with enhanced follower for smooth feeding and fast reloads.
OEM‑style MP5 pattern 30RD BHO magazine featuring steel build, improved follower, and last‑round bolt hold open capability.

Military Armament Corporation

MAC IX Bolt Hold Open 30 RD magazine, Fits MP5's

$37.99
(4)
SKU:
80065019
UPC:
810162051389

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Details

Specifications

PROP 65 WARNING

Details

MAC IX Bolt Hold Open 30RD Magazine – MP5 Compatible

Upgrade your MAC IX with this 30 round Bolt Hold Open magazine, engineered for reliable feeding and last round lockback. Built with a durable steel body and enhanced follower, it delivers smooth cycling and faster reloads. Perfect for range use or duty-ready setups, this OEM-spec mag offers consistent, dependable performance.

Notable Features:

  • 30 Round Capacity

  • Bolt Hold Open (BHO) Function

  • Steel Construction

  • Enhanced Follower

  • Reliable Feeding & Last Round Lockback in MAC IX

  • MP5/ MAC 5 Compatible, but will not lock the bolt open

Specifications

PROP 65 WARNING

WARNING: This product can expose you to chemicals, which are known to the State of California to cause Cancer and Reproductive Harm. For more information go to www.P65Warnings.ca.gov

Accessories & Add-Ons 

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From Our Customers

Love the bolt hold open feature

Posted by MAC IX Guy on 2026 Mar 11th

Great mags. Not a single failure to fire. A little stiff out of the box, but great fit in the MAC IX and MP5. The guns certainly prefer to have the bolt open when inserting the magazine, which is expected. My MAC IX has never missed the BHO when using these mags. I sure wish some genius could do the same for the MP5. Very impressed with these magazines, and all my MAC magazines. Will buy more.

MAC IX Magazine.

Posted by MAC DS 2011 extended slide release on 2025 Dec 31st

Impressed enough with my MAC IX, I thought I should invest in more mags and will buy more. Just VERY impressed with my MAC 1014, DS Comp 5", DS Comp 4.25" and of course my MAC IX. These all feel solid and look, feel and shoot well above their price. I'm a S&W revolver guy, bolt action guy, large caliber guy...but I MAC makes it easy for me to experience things outside my regular intrest. Looking to buy another DS Comp 5".

Must buy

Posted by James on 2025 Dec 16th

Great price fast shipping work as they should had to find them with bolt open feature!

Good magazines

Posted by John Blancke on 2025 Nov 3rd

Have to go to the range

Write a Review
Love the bolt hold open feature

Great mags. Not a single failure to fire. A little stiff out of the box, but great fit in the MAC IX and MP5. The guns certainly prefer to have the bolt open when inserting the magazine, which is expected. My MAC IX has never missed the BHO when using these mags. I sure wish some genius could do the same for the MP5. Very impressed with these magazines, and all my MAC magazines. Will buy more.

MAC IX Guy

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