The WK180C is a variant of the AR180b. It’s a semi-automatic, piston-driven rifle in .223/5.56 made in Canada.
Note: The WK180C as pictured has been customized by me. I’ve replaced the trigger with an RRA NM 2 stage, the stock is a Magpul, I’ve put a Vortex Viper 1-4 on top, I’ve added a QD mount to the left hand side of the forend, and I’ve put some Magpul M-Lok rail covers over the right hand slot to act as a shell deflector + slot cover. The WK180C in the first part of the video is closer to stock:
Update 2024: So these things are still breaking parts. Charging handles and pistons are still bending and breaking. If you want a more reliable firearm, take a peek at my updated “Canadian Black Rifle Tier List” video.
WK180C vs AR180B
The AR180B was sold from 2001-2007 with mostly low cost in mind. The WK180C is still designed to hit a certain price point but it comes with several important upgrades over the older 180B.
WK180C Advantages over AR180B:
- Receiver picatinny rail: this saves having to buy a $80 rail mount
- Aluminum upper+lower: the old lower was polymer and had a tendency to crack at the front pivot point. The lower also uses standard AR15 grips
- Aluminum forend with rail top and M-LOK slots. This is light, stiff, and much more flexible.
- AR15 buffer tube and stock mount adapter: this raises the stock so that it’s in-line with the barrel (reducing muzzle rise) AND it enables use of the plethora of AR15 stocks
- AR15 style barrels+barrel nut: they’ll still need to be 18.5″+ and use a carbine gas port, but at least there’s more options for barrels
- Left side or right side charging handle (I LOVE left hand charging handles)
- Ambi safety selector
So the WK180C is a substantial upgrade in terms of ergonomics, flexibility, and quality of materials used compared with the AR180B
Access to the AR Platform, but Non Restricted
The big plus to the WK180C is access to many of the AR platform’s infinite aftermarket parts. AR compatible parts include:
- The barrel (though it must be carbine gas length, we already have retailers selling barrel upgrades)
- Muzzle brakes/flash hiders
- The forend (though it must fit the gas block example)
- Stock/buffer tube/end plate
- Pistol grips (no beavertail)
- Trigger
Unlike a true AR15, you can get a folding stock for it without a care for your buffer and spring (since it doesn’t have one in the buffer tube), and the bolt doesn’t get as dirty because it’s piston driven.
WK180C Weight and Balance
I thought I’d do some measurements.
- WK180C with no optics (empty): 3.18kg
- WK180C with a 1-4 Vortex Viper and Magpul CTR stock: 3.74kg
- AR #1 (16″ SPR barrel, 1-6 PA scope, ACS-L stock): 4.02kg
- AR #2 (16″ M4 barrel, no optics, no trigger/hammer, M4 stock): 2.73kg
Balance point on the 180C is about 3/4 to the front of the magwell, at the pivot point on one of my ARs (SPR barrel 16″), and very front of the magwell (16″ M4 profile barrel). Magwell to grip relation is identical on both guns, but the 180 has a longer rear by about 1.5″ due to the stock adapter. Functionally, that’ll mean you might have to use 2 positions less on your 6 position AR stock to maintain the same length of pull, but the balance should be nearly identical to a well kitted out AR. Of course, a lighter profile, shorter barrel(12-14.5″) AR is going to balance further to the rear.
The weight of the WK180C forend is 6.65oz (189 grams), pretty good!
WK180C Accuracy
I found the accuracy to be excellent given the price point. Group sizes for commercial hunting-grade 223 were around 0.75″-1.5″, and “blaster 223″ gave me around 2-3” groups.
Cons
Some of these are because the gun is new and I’d imagine they’ll be resolved in time.
- They’re breaking parts. Charging handles and pistons primarily.
- Factory trigger is poo. I changed mine out immediately for a nice aftermarket set. I’d recommend the ALG ACT if you’re looking for a low priced trigger upgrade (~$80)
- The forend is a bit short for today’s fashion. Most rifles use a 15″ handguard instead of the 10-11″ handguard on the WK180C
- Trigger/hammer pins aren’t AR compatible and they need an anti-rotation/anti-walk option
- Gas block touching the forend
- No shell deflector, so the brass starts to mark up the finish (unless you put on those Magpul rail covers)
- It’s got a chunky ass. Some guys are into that though
Reliability/Parts Breakage Issues
I have had no reliability or parts breakages with my WK180, but a lot of other people have.
Charging handles have gone through 3 revisions. The original (like mine) was not retained by anything other than the aluminum receiver. They can chowder out the aluminum a bit, so Kodiak opted to go to a magnetic one. Those failed, so then they went to a screw in charging handle. Some of those fail and fall off too.
There was a run of bolts that were improperly heat treated. Some of those failed either on the lugs or on the sleeve that rides the recoil spring guides.
The cam pin chowders out the inside aluminum receiver and rails. Over a long period of time, this may cause issues.
Conclusion
Non Restricted access to AR platform upgrades for $1100 using mostly aluminum construction that should last longer than plastic. Unlike most of our non restricted rifles under $2500, this would be entirely suitable for shooting a 3 gun match after you’ve upgraded the trigger. Price point wise, it’s competing against firearms with worse ergonomics like the T97. Outside its price, it’s competing against other bullpups and the WS-MCR.
