Third Echelon Development

06/11/2026

Derringer barrels destined for some integrated suppressors 🔥

04/29/2026

Gas Caps for Gen 6/V-series imminent!

04/29/2026

https://youtu.be/hM8H6SoX-xA?si=mlGtspz-A-mlumN3
Running the Gas Cap in the rain is an interesting use case! Love to see it continue to deliver for suppressor users.

77 likes, 30 comments. "The G***k Gas Cap?"

04/23/2026

Talking about the suppressed Derringer designs at NRAAM with Michael Bane!

This NRA Show had some amazing…and some genuinely quirky ones as well…and you know Michael has ferreted them all out!

04/19/2026

Come see us at NRAAM booth 3417! Integrals and G***k Gas Caps on display for you to check out with our friends at

03/06/2026

VSO Gun Channel tested out the Gas Cap and set up a simple comparison test.
Check it out!

If you think about a handgun, it is different than firing a long gun. During the firing sequence you orient the action right in front of your face. Suppressi...

02/25/2026

What do you think of these jig prototypes?

02/12/2026

Check out our new video!
The Gas Cap redirects blowback from the gaps at the rear of your pistol downward, instead of into your eyes and face.

*Watch in HD* Demonstration contains many small particulates.The Third Echelon Development Gas Cap™ is a vital upgrade to G***k pistols paired with a suppres...

02/12/2026

Gas Caps in stock now at AR15discounts.com!

Gas Caps for G***ks Gen 3-5 from our friends at are available on the site now! Looking to enhance your suppressed experience for your G***k, look no further!

01/24/2026

Check out our Shot Show visit with James Reeves of The Firearm Blog!

At SHOT Show 2026, James Reeves takes a look at one of the strangest suppressed handguns on the show floor, a silenced derringer from Bond Arms. Known for th...