Derya DY9 Comp
- Graham Baates
- 2 hours ago
- 5 min read
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Adding to our coverage of the original DY9, DY9 Island, and DY9 Gold is the DY9 Comp. This model set itself apart from the others with a longer, threaded barrel and thread-on compensator.
What Is It? The Derya DY9 Comp is another model of DY9 which retains the same grip size and internal parts of the standard DY9, but includes a reduced-weight slide, longer threaded barrel, and removable compansator. If you're not familiar with the DY9 it is a Glock 19-based build with limited parts interchange, but greatly enhanced trigger and ergonomics and available at a fraction of the price.
Why a Comp? Although compensators come with the drawback of adding weight to the muzzle, they are without the velocity loss and ammunition sensitivity that ported barrels have. Additionally, if the potential noise or blast from the compensator isn't desired it can simply be removed for the moment whereas a ported barrel remains ported.
Who's it For? The Derya DY9 pistols are at a price that tickels the "why not?" question. The DY9 Comp offers an affordable way for one to experience a compensated pistol and have a good potential suppressor host. For home defense use remove the compensator and enjoy the enhanced ballistics of a longer barrel. If you want to carry the DY9 Comp it's easy enough to remove the compensator and use a longer holster, or simply swap in a Glock-pattern G19 barrel for standard holster use.
Take a Look at the Derya DY9 Comp in the tabletop video below. Rumble link
Specifications:
Model Name: DY9 COmp
Front Sight: Truglo Fiber Optic (Red)
Caliber: 9MM
Rear Sight: Truglo Green
Capacity: 10 or 15 rds
Grip Type: Polymer with changeable back plates
Weight: 2.05lbs
Action Type: Semi-Automatic
Barrel Length: 4.64”
Finish: Black Nitride
Overall Length: 7.52”
CA Compliant: N
Overall Width: 1.16”
MD Compliant: Pending
Overall Height: 4.56”
MA Compliant: N
MSRP: $449
Prices around the web as of 7APR26
Click links for current pricing
*This article was written while overseas with limited access to US vendors. I will update upon my return to the US.
What about "added weight"? Compensators add weight in the best place for recoil control and worst possible place for the firearm's operation. The same jetting gasses and weight that helps reduce muzzle flip also resists a Browning Tilting Barrel Action's need to shift the barrel. This is why some aftermarket compensators require adjusting recoil spring strength, specific ammunition, or a vise-grip hold on the pistol to enable it to function properly. Fortunately the engineers at Derya have taken this into account and produced a very lightweight compensator. As far as ammunition sensitivity we'll have to wait and see in the range video.
As you've come to expect I don't let prior experience with a company sway the review of a new model, so the GBGuns range protocol was used including:
Cold Shots: Truly my first shots through the gun.
Full Magazine +1: Suprisingly some modern guns still struggle with this. It's a test of how much play is in the magazine as well as how the slide cycles with pressure. This is also when I do my best to learn the trigger.
Multi-Mag: When a handgun is compatible with common magazines, such as the Glock-pattern magazine we test to see how after-market magazines fit. Particularly with Glock-pattern magazines the polymer can be of slightly different dimensions from brand to brand resulting in snugger or looser fits, especially if hydrophillic polymer has been exposed to much weather.
What's For Dinner™: A test to see what ammunition the gun will eat. Does the gun feed the round from slide lock, will it cycle and feed another round of the same type, does the slide lock to the rear on empty, and is there any notable point of impact change with different loads.
For this gun the following ammunition was used:
Priced and linked where found at the time this article was written
45gr Sim-X DEFENSECORE $18.99 / 20 at Target Sports USA (see review HERE)
65gr NovX Crosstrainer $21.20/ 20 at Firearms Depot
72gr Liberty Ammunition Overwatch $41.49 / 20 at Global Ordnance
100gr Federal BallistiClean $33.99 / 50 at Palmetto State Armory
100gr Sellier & Bellot XRG $13.34 / 25 at Target Sports USA (see review HERE)
108gr Norma MHP Out of Production?
115gr TMJ EcoBullet $19.95 / 50 direct from EcoBullet (see review HERE)
115gr Wincherster SilverTip $18.29 / 20 at GrabaGun
124gr Federal Premium HST $39.95 / 50 from Widener's
147gr Winchester Defense $16.32 / 50 at Battlehawk Armory
165gr AMMO, Inc. /stelth/
Standard Range amunition was 124gr PMC FMJ $16.29 / 50 at Ammunition Depot
Sights & Trigger Control: on a 6" spinner target at a distance of 12-ish yards. We got this from Titan Great Outdoors and use it to gauge how learnable the trigger is and usable the sights are for forced, timed, precise shots.
Practical Accuracy: Five shots from a distance of seven yards at a one inch target. This isn't so much about printing a tight group as it is a culmination of the shooting experience and time for to collect thoughts prior to making a conclusion.
After Shots: Final impressions and reflections from the range session.
Watch the process from the very first shot for the Derya DY9 Comp in the Shooting Impressions video below. Rumble Link
On the range I was impressed with how effective the compensator is on the DY9 Comp. It may not look like much, and doesn't weight enough to cheat the compensating effect, it just works!
Just like with the DY9 Gold there seems to be some ammunition sensitivity with lighter loads below 115gr, but when fed the right ammunition the DY9 Comp is a joy to shoot. The DY9 Comp also changed my opinion of thread-on compensators. I admit to previously having thought them silly, not worth it, or just for looks with the weight of the device doing more for muzzle control than any of the venting. This one's aesthetics don't appeal to me, but that doesn't much matter when on the range where its effectiveness more than makes up for it.
My main interest in the DY9 Comp was to be able to do a comparison of all four models currently on the market. They all have different slide designs and so possibly different slide weights. It's been my experience that slide weight has a great impact on felt recoil and the rhythm of a gun. That comparison will be in a separate article and video.
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