Insert 401 Triple 556 Spiritus Systems Micro Fight Chassis Mk4 Haley Strategic Partners D3CRM Micro Chest Rig

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insert 401
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Product Overview

WTF's Insert 401 accepts three 556 mags or similar.  Insert 401 is intended for use in Spiritus Systems Micro Fight Chassis Mk4, Haley Strategic Partners D3CRM Micro Chest Rig, and similar rigs with all loop lining and a closed bottom.  Insert 401 has hook on the front and back.

Insert 401 is manufactured in the USA using milspec, Berry compliant, solution dyed fabrics.  MIL-W-5664, solution dyed, elastic holds mags snug against a Hypalon friction pad for a well balance retention.  MIL-T-5038 webbing loops are ready to receive optional shock cord and pull tabs should additional retention be desired.  Milspec hook front and back hold securely inside loop lined platforms.  Abrasion resistant MIL-DTL-32439 TIII 500D nylon lines the interior.  All of this is stitched together by skilled labor with A-A-59826A bonded nylon thread to produce a tough, lightweight part.

Made in the USA.  2.1oz / 60g.  Available in Multicam, coyote brown, ranger green, and wolf grey.

optional shock cord and pull tabs not included


(6 reviews) Write a Review

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  • 5
    Best of the Best of the Best, SIR!

    Posted by Mason Leming on 22nd Nov 2023

    Ran one of these for a year and it holds STANAG and Magpul mags fantastic, just enough friction without it being too much. Light and crushable, I love it. Tried other hard-plastic inserts and never liked the extra bulk or noise. Perfect fit in my Spiritus Micro Fight. Wish I had known about WTF earlier.

  • 5
    Great product. Needs more options

    Posted by Joe on 21st Nov 2021

    This insert is so much better than the normal elastic insert for the Spiritus MK4. It has more velcro and the inside has rubber grip material for mag retention, as well as the option to add bungees. The only thing that would make this product better is if it was offer in a single insert and a 7.62 insert.

  • 5
    Hell yeah

    Posted by XVX mosh warrior on 15th Aug 2021

    The shipping was super fast! Love this insert so much more than the Haley one, high quality and easy to reindex! Would recommend this to everyone who owns a Haley chest rig

  • 5

    Posted by Chris on 13th Jul 2021

    Do yourself a favor and get this. I've used a few different types of these and honestly, this one is by far the best I've used. Quality people making quality gear that can't be beat.

  • 5
    Haley micro insert

    Posted by Nathan on 11th Apr 2021

    Best insert ive used so far in my various chest rigs, its a little hard to get in because of the velcro but that is expected. Holds magazines nicely and they're easy to draw and to return to the insert.

  • 5
    Triple 556 insert

    Posted by Troy Denver on 24th Nov 2020

    Its a good insert, retention is good, I'm using it in a haley micro. Reinserting empty mags isn't hard. Over all I like it.