Triarii – Glock, 20/21 Gen 3/4

(1 customer review)


MATERIAL: Aluminum
WEIGHT: 2.24 lbs
COATING: Anodized
COLOR : Black

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SKU: 10.08 Category:


Hera’s Triarii  converts Glocks into a carbine, it is an essential accessory for maximizing your pistol’s performance. Easily convert your pistol into a sporty carbine in seconds, without any modifications to the base firearm. Simply insert the pistol and lock using the rotating mechanism. The adjustable buttstock angle ensures a comfortable and secure fit, even with helmets or hearing protection. With Picatinny rails and compatibility with AR15 buttstocks (SBR) and pistol braces, enjoy unparalleled modularity and accuracy.


This is the carbine converter made for the Glock, 20/21 Gen 3/4. Hera has made the Triarii for the following Glock platforms:


Crafted exclusively for Hera Arms in Franconia, Germany, all HERA polymer products uphold the highest quality and performance standards.


Legal Note: In the absence of local laws prohibiting ownership, American civilians may own an SBR provided it is registered with the ATF in compliance with federal regulations.

Additional information

Weight 42.92 oz

1 review for Triarii – Glock, 20/21 Gen 3/4

  1. Zach (verified owner)

    Very cool product. Great company. This fits very solid. I used a sf frame and a 9″ barrel. you could probably fit around a 12″ if you wanted the end of the barrel to come out the end of the triarii.
    FWIW: a pf45 wont work. the rail must have too different of dimensions to insert it. Also the strike industries AR picatinny rail stock adapter didn’t fit, but the KNS fit perfectly and is more compact if you want to run a folding stock without a buffer tube.

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