Agency Arms 417 Single Port COMPENSATOR


Agency Arms Drop In Barrels For Glock Pistols.

(1 customer review)

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The Agency Arms 417 Compensator is threaded with the standard 1/2×28 thread pitch. It features a single top venting port and it also features a front sight hole. It is designed to utilize the OEM recoil spring assembly and the front sight hole allows you to transfer your existing front sight from your slide to the comp. Compatible with the 17,19 and 34.

The package includes:
417 Comp (Generation specific)
2 Set Screws with an Allen Wrench
Vial of Rocksett

**The Gray and Gold finishes are anodized and are not an exact match to our barrels. Disclaimer : Color of the actual product may vary from the image.**

** Please note the video below features a prototype unit, the production version now features a single top venting port.**


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Additional information

Weight 3.2099305402425 oz
Dimensions 3 × 2 × 1 in




1 review for Agency Arms 417 Single Port COMPENSATOR

  1. Jonathan (verified owner)

    The 417 Single Port compensator is a “compromise” compensator, but it compromises very well. This comp doesn’t compensate as well as larger comps (KKM, 417 2-port, etc.), but does benefit from a reduced OAL (just over G17 length with a G19), the ability to use weaker 115 gr practice ammo (I’ve used Magtech, S&B, and Fiocchi without issue), and give a little more margin for error that has allowed me to stick with the stock Gen 4 dual RSA in my Glock 19.

    I’m fairly pleased with how it does tame muzzle rise, even if it’s not as dramatic a difference as with other compensators. Installation is also easier than expected; the “notch” in the front that grabs the protruding part of the RSA makes alignment fairly simple (the slide won’t go back if not aligned properly). A note for installation: Agency recommends using red Loctite instead of Rocksett even though older packages may ship with Rocksett. The loctite broke fairly easily with direct heat application from a small butane torch, but has held up well since reinstall. Overall, I’m very pleased – I’m getting enough muzzle rise reduction to notice a split time improvement, without the need for excessive spring and load tuning that I worried would come with a pistol comp.

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