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Questions & Answers
Will they fit Howa 1500 mini action in .223 ? Manufacturer Answer

If an AR15/M4 magazine will fit then this will to

by FAB Defense, Manufacturer, July 16, 2025
Will 300 work in the magazine? Expert Answer

Yes. The FAB Defense Ultimag 5R 5-Round Limited, 10-Round 5.56 AR15 Magazine will fit 300 Blackout as well as 5.56/.223 and variants.

by Ethan, Gear Expert, March 8, 2022
Customer Reviews
Helpful Positive Review
Great option for hunting by Mick, October 25, 2019
I bought two of these magazines for hunting restrictions in my area. They feed flawlessly and seem very sturdy/ well built. Dropped one out of a stand on accident and it hit a boulder on landing. Tiny scuff on the mag but still ran perfectly after 5 ...
Read More...
8/8 found this helpful
Most Recent Reviews
Wow this thing works by Andy, Verified Owner, July 30, 2025
I didn’t have much expectations of this like changing the course of my life or human history but it does hold 5 bullets really well. So, I guess it’s got that going for it, which is nice.
Most Recent Reviews
FAB Defense Ultimag 5.56x45mm NATO AR-15 5-Round by Josh, Verified Owner, April 16, 2025
Excellent magazine so far. Zero failures to date. Will be buying another.
Most Recent Reviews
5rnd FAB Defense Ultimag by John, Verified Owner, January 15, 2025
Works in my rifle. Needed a 5nd magazine for hunting restrictions.
Most Recent Reviews
Does not allow bolt to cycle by Nick, Verified Owner, October 16, 2024
When this magazine is in my AR, it sits too high and catches the bolt, so the bolt stops halfway home. Totally useless.
Most Recent Reviews
5rd Magazine by Brian Rogers, Verified Owner, November 18, 2023
Would have given 5 star but i ordered a Hunters Orange Magazine and received a Bright Bright Red one. I would of been happy with black but red ? It was so close to not getting here before opening day, im actually a bit disappointed.
Read All 6 Reviews
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Certain firearm magazines and extensions are subject to maximum capacity restrictions based on state and local laws. Currently, we are unable to sell these products to some locations. For a complete list of these restrictions, please visit our policy page.

By continuing with your purchase, you agree to adhere to all applicable laws and regulations.  

Product Info for FAB Defense Ultimag M4/M16 5.56x45mm NATO 5 Round Rifle Magazine

High grade and high quality the FAB Defense Ultimag 5.56x45mm NATO AR-15 5-Round Limited Rifle Magazine makes a great modification for your firearm. These AR Rifle Magazines from the brains at FAB Defense feature an ergonomic design made for enhanced grip and faster magazine change. Crafted from durable, light weight, polymer composite and steel the FAB Defense Ultimag 5-Round Magazine wont weigh you down. The FAB Defense Ultimag 5.56x45mm NATO AR-15 5-Round Limited Rifle Magazine is a reliable and ergonomic addition.image

Specifications for FAB Defense Ultimag M4/M16 5.56x45mm NATO 5 Round Rifle Magazine:

Manufacturer: FAB Defense
Fabric/Material: Polymer
Magazine Capacity: 5 Round
Caliber: 5.56x45mm NATO, .223 Remington
Gun Make: AR Platform
Gun Model: M16, M4, AR-15
Gun Type: Rifle
Quantity: 1
Included Accessories: Standard
Weight: 0.289 lb
Width: 1.06 in
Height: 8.66 in
Length: 3.54 in

FAB Defense Ultimag 5.56x45mm NATO AR-15 5-Round Limited Rifle Magazine:

  • Limited for 5 rounds (10-round housing);
  • Ergonomic design made for enhanced grip and faster magazine change;
  • Specialty made floor plate for specialty-made coupling options;
  • Dissembled by hand, no tools needed;
  • Made of durable, light weight, polymer composite and steel;
  • Highly reliable construction, built to last

Package Contents:

  • FAB Defense Ultimag M4/M16 5.56x45mm NATO 5 Round Rifle Magazine

FAB Defense Ultimag M4/M16 5.56x45mm NATO 5 Round Rifle Magazine Orderable Models

List of Orderable Models

  • FAB Defense Ultimag AR-15/M4/M16, .223 Remington/5.56x45mm NATO, 5 Round Rifle Magazine, Black, FX-UMAGR5 , MPN: fx-umagr5 , UPC: 7290111582905 , Code: 1S0-RM-U5R-FX-UMAGR5-5RD
  • FAB Defense Ultimag AR-15/M4/M16, 5.56x45mm NATO/.223 Remington, 5 Round Rifle Magazine, Blaze Orange, FX-UMAGR5H , MPN: fx-umagr5h , UPC: 7290111582936 , Code: 1S0-RM-U5R-FX-UMAGR5H-5RD
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