Kriss vector sdp9 gen 2 pistol.

SCARCQB · Mar 12, 2019

I recently purchased a Kriss Vector SDP9 .

I’ve been on the fence about the Kriss vector for such a long time. I wanted one. But could not justify the high cost and the super v recoil mitigation system didn’t really make sense to me for a subgun that didn’t have a happy switch.

Then the 9mm gen 2 SDP pistol came out.

That changes things.

It uses Glock 17 mags. ( I have quite a few of those )
It’s in 9mm. ( I’m thinking, wimpy recoil of a .9mm in a heavy gun plus an effective mechanical recoil mitigation system= fast shooting/ tracking gun)

Shooting 9s is more affordable than 10mm or 45 acp.

The trigger has been upgraded to a pivoting design. It’s much better than gen 1 triggers.

The stock hinge had been replaced with a standard threaded socket that accepts AR buffer tubes/ adapters. ( another weapon with the potential of attaching any m4 stock or brace in it)

The extractor has been upgraded.

Fires from a locked bolt.

Felt recoil is almost non-existent with the super v system.

And the best part. Kriss vectors have come down on price.

SCARCQB · Mar 12, 2019

The ergonomics on the Kriss is weird. Nothing lines up. The bore axis is below the trigger finger. The lower receiver contains the bolt and barrel group ( serialized part) and the upper contains the fire control group. The hammer swings down.

The gun recoils with a downward force as the bolt group takes a nose dive when retracting during cycling.

SCARCQB · Mar 12, 2019

I’m not going to go through the technical aspects of the weapon. That can be obtained from many sources.

I’ll get right into what I do not like about the gun;

It came with defiance low profile flip buis sights. Those are great sights, well made and sturdy. Light and compact. But they sit too low for a comfortable cheekweld and won’t absolute co- witness with standard ar height optics.

Height over bore is high.

It’s hard to charge the weapon. You will need to work out to develop the muscles to effortlessly charge the weapon. The bolt travel is very short and the action feels stiff.

The side folder hinge is gone. The flashlight option has been deleted.

The controls are bunched up on the left side of the weapon. Since it’s a pistol. ( no vertical grips allowed ) one tends to naturally hold the weapon with the support hand on the mag well. That does not work well. Upon recoil , the palm of the hand can inadvertently actuate the bolt catch and lock the weapon open. Gripping it lower has the tendency to inadvertently actuate the mag release and drop the mag. Gripping it forward puts the support hand near the muzzle. That’s too close for comfort.

SCARCQB · Mar 12, 2019

With those things said.
I still like it. Most of those issues would be resolved with a vertical foregrip. But I’m in Maryland. Can’t even do an SBR conversion due to that 29” oal rule.

So......

An Angled foregrip will have to do.

That gives the support hand something to grip into without locking up the bolt or releasing the mag.

I custom made one for my purpose.

SCARCQB · Mar 12, 2019

Rails , gotta have more rails.

Installed rails on the left and right side . Installed a gas pedal to work in conjunction with the angled foregrip , thumb rest and barricade stop to craft a comfortable grip on the front area as to prevent the inadvertent actuation of controls. ( a very grip would have been better )

SCARCQB · Mar 12, 2019

Hera arms side folding unit.

Probably the best folding stock adapter for gen 2 guns. Sleek, simple, solid lock up. No wiggle.
Reversible and easy to install.

SCARCQB · Mar 12, 2019

Good things come in small packages.

Brace folded.

joppaj · Mar 12, 2019

As always Sir, an excellent write up. Looks like you've made some really useful updates as well.

FrankOceanXray · Mar 12, 2019

I like these guns. But I don't.

Nice input, thanks.

SCARCQB · Mar 12, 2019

So what works ?

The trigger is excellent for a factory gun. It is crisp and the reset is short.

The felt recoil is almost non- existent. The recoil mitigation system coupled with the 9x19 cartridge makes for a soft and fast shooting platform. Accurate rapid fire shots are possible. Especially with the improved trigger and the added stability of a brace.

Recovery from recoil is much faster when compared to blowback guns like the evo3, AR9s , stribog etc.

The reticle does not leave the target during perspiration fire strings. There is a noticeable lack of muzzle rise. I added a compensator to the muzzle and that results in a very flat shooting gun. With accessories , the gun weighs in around 8 lbs. the added mass also helps dampen recoil and muzzle rise.

This lack of recoil is what has drawn my interest in the platform. If you can’t have a happy switch, compensate with speed and accurate shot placement. The SDP 9 with a brace makes that possible.
The design of the weapon is genius. It works with body mechanics , physics etc to reduce muzzle rise and felt recoil. The entire gun is in fact a mechanical compensator.

SCARCQB · Mar 12, 2019

Weird ergonomics

Surprisingly works well. The weapon is a natural pointer. It is short and maneuvers well in tight spaces.

The standard defiance low profile sights are okay. But too low profile for my liking. For me, I can’t get a comfy cheekweld. Standard height sights ( AR) works better. If you have the older generation with the comb on the stock, the low pto sights work. Not with the straight line of the gen2s.

SCARCQB · Mar 12, 2019

Compared to an AR9 pistol , cz evo3, ptr mp5

The vector was easier to shoot accurately. And it’s faster.

The ability to get back on target( tracking ) is significantly better on the vector .

SCARCQB · Mar 12, 2019

The Blackhawk PDW sling for the fn p90 works well with the SB tactical brace.

It tucks inside the brace when not needed. It’s also a good way to install a sling on a big azz gun that does not have sling attachment points. I did add a factory sling loop. But prefer the Blackhawk sling better.

SCARCQB · Mar 12, 2019

The SDP 9 with an sb tactical SBA3 brace with a milspec buffer tube , brace fully extended .

Has an overall length of over 26”.

That takes it out of the “ pistol” category and makes it into a “ firearm”. At this point, a vertical foregrip can be installed without breaking NFA laws.

SCARCQB · Mar 12, 2019

Eotechs and vectors seem to be a perfect match . The significant height over bore on modern guns ( especially bullpups and the g36) makes zeroing a challenge.

I zeroed tge vector at 100 yards using the center dot on the eotech. Then use the lower tick mark on the outer circle as an aiming point for targets within a 30 yard distance.

The FN ps90 is similar.

SCARCQB · Mar 12, 2019

Aftermarket rails allows for lights , lasers and other thingamajigs. Get them cheap from amazon.

SCARCQB · Mar 12, 2019

The non reciprocating HK style charging handle, when lifted. Retracks the action slightly to allow for a visual inspection of the breach to see if a round is in the chamber. It’s a safer equivalent to a “ press check”.

SCARCQB · Mar 12, 2019

Does it work as a suppressor host?

Yes it does. And it does it well.

Since it fires from a locked breach, it’s a bit quieter compared to a blowback gun. Less gas in the face as well.

Another bonus is it’s ambidextrous and southpaw friendly. The ejection port is forward and clears the shooters face. Regardless of which you’re shooting from.

SCARCQB · Mar 12, 2019

The vector will also fire with the brace folded. The trigger and safety can be manipulated with the brace in the folded position.

SCARCQB · Mar 12, 2019

Next....... range report. Hopefully by this weekend.

Kriss vector sdp9 gen 2 pistol.

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