Chainsaw or Masterkey? Why Not Both?


Police in the UK are using chainsaws to help breach doors.


Some of you may ask: “Why not use a shotgun or a battering ram?” Good question. Firearms and police are touchy subjects in the UK. So they opt for a less lethal method in this case. Why not a battering ram? Door jams are apparently popular in the UK such as the one below. There are various other types but the problem still persists.


We all know the stereotypical method is to use a shotgun for door breaching.  And some of you may know of the Masterkey by Knight’s Armament. Used for door breaching, the first guy in the door does not have to transition to another weapon in the case he needs to take a shot at a target that the shotgun won’t help with.



Well why not borrow that idea and add a chainsaw to your AR?



Pancea X makes the Zombie X chainsaw. It is a portable electric chainsaw that mounts to a picatinny rail. It retails for $800 on their website.

Here is a video of it operating.


While the whole Zombie addiction is a bit overkill, I am curious if the Zombie X chainsaw can perform the same duties as the chainsaw being used by British Police.

Nicholas C

Co-Founder of KRISSTALK forums, an owner’s support group and all things KRISS Vector related. Nick found his passion through competitive shooting while living in NY. He participates in USPSA and 3Gun. He loves all things that shoots and flashlights. Really really bright flashlights.

Any questions please email him at


  • Blake
    • Bigbigpoopi

      I was thinking of this

  • Blake
  • iksnilol

    These seem like novelties to me. Can’t compare with even the lowliest Stihl IMO.

    • Giolli Joker

      Only useful against rubber zombies.

    • Tassiebush

      And that gulf is even more pronounced for Husqvarna since they’re so much better than Stihl.

      • iksnilol


        Or me and Alex C. are going to have to give you a stern talking to in regard to the superiority of TEUTONIC TECHNOLOGY!

        In all seriousness, I’ve used both (a trick taught to me by my father: bring multiple chainsaws so you don’t have to fill them as often), I didn’t notice much difference. Both are quality IMO though Stihls are easier to maintain IME.

        • Tassiebush

          One is just about the oldest gun manufacturer in the world and the other isn’t. In fact I think from this day forward I will only shoot Husqvarna guns, ride Husqvarna motorbikes and wear clothes sewn with a Husqvarna sewing machine.
          (Yeah they are both good)

          • Bill

            My next ex-wife has a Husky sewing machine.

          • Tassiebush

            Haha what a pessimistic way with words you have.

        • Bill

          I’ve got two chain saws and two brush cutters, one from each company. I don’t notice much difference either.

  • iksnilol

    This gem right here:

  • Giolli Joker

    A good list of interesting uses from the website (only No.2 applies in rel life… but quite funny overall):

    Best Uses For the Zombie X Chainsaw Bayonet

    1-“Killing” Zombies. ( Zombies are already dead so…?)

    2-Best display! Mount a ZXCS on your tricked out assault rifle and
    have a guaranteed crowd pleaser/ attention getter. It is great for trade
    shows, gun store displays, gun room display, or even over the fireplace
    mantle at the cabin!

    3-Drug Enforcement Agents can use it for marijuana eradication; and always be armed while cutting down the plants.

    4-Marijuana growers can use it to harvest their crop and always be armed while cutting down their plants.

    5-Off road motorcyclists, mountain bikers and hikers can keep the ZXCS
    in their hydrator pack and remove downed trees and branches that often
    fall across the trail.

    6-Emergency evacuation. Cut through the roof if trapped in attic
    during a flood. Cut through wood doors and walls to make an escape too.

    7-Clear your kill zone of pesky branches in front of your tree stand or blind.

    8-Camping, cut firewood around deer camp while the ZXCS is attached to your rifle.

    9-Be a B.A.M.F. at the next three gun match/Zombie shoot! Your character will always be remembered.

    10-Mount the ZXCS to the peg board of your electric guitar and jam some serious metal!

  • Bob

    I doubt something like that has the muscle to match a gas powered treekiller, not to mention the ridiculous factor…

    • iksnilol

      Kinda want it on a 50 beowulf rifle. That way neither cars nor trees can stop you from getting your target.

  • NoNamesOnTheNet

    The amount of time they stood directly in front of the door made me cringe.

    • Brian Ballard

      Despite what you may have heard, criminals in the UK are rarely armed and if they are it if for protection against or intimidation of other criminals rather than against the police. Penalties for unlicensed firearm possession or using one during a crime are harsh so it’s not worth using one. So police tactics are much less focused on countering firearms. The police generally have intelligence if the suspect is like to be armed and will change the tactics to suit.

      • Bill

        Americops also don’t do forcible entries wearing hi-vis clothing, though personally I’d like us to mimic the way they wear it in the UK while on “normal” duties. Getting the troops to wear their ANSI vests at crash scenes and stuff is a nightmare.

        • Brian Ballard

          They do love their hi-vis! 🙂 to the point it’s pretty much the most recognised bit of the police uniform. Even the iconic helmet is getting rarer.

        • Tassiebush

          Our police in my state (Tasmania) now wear high vis body armour with their kit hanging off it as standard uniform. The hi viz comes off quickly apparently if needed but it makes sense that they’re always protected by both.

  • Matt Shermer

    I can’t believe that there isn’t a way to get the same package with a similar sized gas powered engine…

    • Pastor Dan

      The gas engine would not only need to be suppressed, but the pollution control police would add enough electronic and/or toxic (but expensive) heavy metals and other useless junk to render the saw inoperable. Electricity is always preferable; that way the environmental damage occurs at the generating plant, at the mine that feeds the plant, and at the landfills where the waste gets wasted. Those sites are out of sight, i.e., Not In My Back Yard.

  • Bear The Grizzly

    Did you refer to a chainsaw as “less lethal”?

    • iksnilol

      Well, it is less lethal to nick someone with it instead of stabbing them with it.

  • DIR911911 .

    anyone who thinks a chainsaw should be an attachment is someone who hasn’t spent much with a REAL chainsaw

    • iksnilol

      Fond memories of my father’s Stihl with the 60 cm blade come back now.

    • El Duderino

      Electric too. Hope that door is a piece of junk.

      What about a metal exterior door? I don’t think the Master Key has anything to worry about.

      • Core

        Batteries and brushless electric motors have come a long way in the past decade.

  • Less lethal? I’d rather be shoot than Texas Chainsaw’d at my front door.

  • Pete Sheppard

    All of a sudden deadbolted doors look less secure… :/

  • Bill

    If we’re doing a dynamic breach my preference is to borrow a rescue (rotary) saw from a fire department to have handy; they’ll do chain link, metal or anything else, though I noted that the chain saw the Bobbies are using is the kind hose-humpers use for ventilating roofs, with that weird limiter on the bar. Those door jam locks are often referred to as Fox locks in the States, and are hugely popular in big cities.

    Fortunately, most of the places I have to hit are trailers, mobile homes or prefab housing, so a can opener or stiff wind will get us in.

  • Bill

    Ash would be proud.

    Don’t you want to avoid any risk of being splattered with zombie blood? My zombie knowledgeable is admittedly limited, but I thought that would infect and zombify you.

    • Tassiebush

      Yeah fighting zombies is total face shield thick gloves and condom territory. Spatter is to be avoided.

  • kyphe

    Can I just add from what I hear in the UK, that the decision to use a chainsaw was at the request of the local council. You see a large number of forced entry is done on people living in non profit subsidized social housing which gets it’s maintenance budget backed from the tax payer. When you cut a door like that you generally just have to fix the door which is just a few screws. when you bash in the new doors with a ram (especially when there is a door jam) you damage the frame which costs much much more to fix. This is basically a test case in this area and if successful in reducing costs to local councils and housing associations without impairing police actions then it will be recommended to other 44 police forces around the UK. Shooting a door in the UK would be classed as negligent discharge and would normally be a criminal offense.

    • Jonathan Ferguson

      Not to mention you’d be hard pressed to safely breach a typical UPVC door with a shotgun.

  • Kyle_D

    What happens if the house you’re breaching has a metal door? Pretty common where I come from with the harsh winters

  • DanGoodShot

    Being a Landscape Company owner I have used a many a chainsaw in my time. And I can tell you from experience I have not seen one electric chainsaw that can… cut the mustard. Really though, NOT practical.

    • Bill

      I’ve never understood why saw chaps manufacturers say that Kevlar chaps wont stop an electric saw – something about torque or such.

    • Fruitbat44

      Practical? No. Cool? YES!!!!! 🙂

  • Jamie Clemons

    Im going to need a 1/4 thick steel door cover.

  • LCON

    When You absolutely Positively have to make the guys On the other side of a Barrier Drop a load in their pants…Accept No substitute

  • LetsTryLibertyAgain

    I think the UK police should just get the Mossberg 12 gauge with the chainsaw handlebar forend and load breeching rounds into that. I always thought the rail mounted chainsaw was a bigger joke than zombies. I’ve made joke images to tease guys about their extreme tacticool mods.

  • Mazryonh

    Quick, someone get the Gears of War fans on this! That would make this attachment fly off the shelves pretty quickly.