The Serbu RN 50 is a budget break action .50bmg rifle originally designed by YouTuber Royal Nonesuch. He collaborated with Serbu and they made the RN50. Pictured above is a shorty version. It is not available on their website but one was made for Royal Nonesuch. It has a 16″ barrel and has a folding stock adapter. It looks very tiny. I kinda want one now.


  • James

    How’s the recoil?

    • Andrew Miller

      To quote most gun magazines.

    • They’ll let you know just as soon as they figure out where their carpals landed.

  • M.M.D.C.

    “I kinda want one now.”

    Me too, but I wonder if owning a 50 is worth it after the initial thrill wears off.

    I read an article on Ferrari ownership. The writer bought and drove one for a year. His takeaway was something like “It was a beautiful car, but for all the hassle and expense you would be much better off with a Porsche.”

    • Dr. Longfellow Buchenrad

      Speaking of Ferraris and others like it, I heard someone say:

      “Its like owning a harem. Its very expensive and tedious to keep operating, but imagine telling your friends you own one.”

      • M.M.D.C.

        You could never tell your friends about your harem because they would never leave you alone.

        • David Harmon

          Sure they would, just tell them you bareback and have Herpes…

    • Jeff Smith

      Like with most large purchases (the Ferrari included), buying a 50 BMG necessitates a honest conversation of “can I actually afford this?” You might be able to afford the gun, but can you afford to spend $3 a round on the ammo? I once talked to the owner of a mechanic shop that specializes in import luxury cars. His shop owned a fleet of them due to people bringing their Jaguar in for repairs and the bill being way more than they could afford. I heard an interview with the rapper T-Pain where he talked about selling his Bugatti Veyron due to having to replace a radiator for something like $100,000.

      tl;dr – anything is fun if you have money to burn.

      • Gary Kirk

        $3 a round really isn’t that bad if you’re using it as intended.. Real 50s aren’t round dumping range poppers.. The biggest problem with owning one (at least where I am) is finding somewhere to use it appropriately. Let her stretch herself legs so to say..

        Side note.. My 375 H&H ammo is currently running at around $6 a pop and 338 Lap is coming in at $4-5

        • Dougscamo

          Not into reloading I see…..

          • Gary Kirk

            Need to start..

            But every time I save the money to get everything.. I buy another gun..

          • rooftopvoter

            Methinks you have a lot of reloading equipment to buy.

          • Nick

            The problem with reloading in this case is that the 50 BMG can’t be reloaded on a regular press. It requires special oversized dies and a larger press, incurring a greater cost.

            It’s cheaper to just buy factory ammo for the 10-20 rounds you’ll shoot off every now and then, unless your goal is to get ultra precise with it (in which case you’ll likely already money to burn)

          • mazkact

            If a Lee Classic is your “regular” press it can.

        • Dan

          .338lm is more than .50bmg for sure. Handloading tips the scales the other way however. I love my .50 and price per round is not prohibitive considering how much i shoot during a session. I can burn more money shooting and AR during a range trip.

        • rooftopvoter

          Reloading gets the cost per shot down but getting there is pricey. Once you are set, cranking out rounds to fit your piece is easy and dialing in the right load is part of the whole discipline package. Been at it since 2009. Had to sell the girlfriend, her car and the cats but it’s the only way to support my habit.

          • pcn65

            Priorities definitely in line.

          • rooftopvoter

            “A man’s got to do what a man’s got to do” or something like that. Actually, the g/f says get out of the house and leave me alone and go have fun.

          • retrocon

            Actually, the Lee .50 kit makes it pretty reasonable.

          • rooftopvoter

            Never looked into the Lee stuff.

          • retrocon

            Good quality for a price point a couple of times higher. Dies, press, other basics in a kit for about 250, last time I checked. Have done hundreds of rounds without a hitch.


          • iksnilol

            eeh, I wouldn’t call reloading economical. You just get to shoot longer for the same money.

            You have to factor in the time spent.

        • All the Raindrops

          Right. Shoot it 10 times during a range trip and call it good.

    • Gary Kirk

      “Wonder if owning a 50 is worth it after the initial thrill wears off”…

      Yes, yes it is. 🙂

    • valorius

      Having been a Porsche owner since 2002, i absolutely agree.

    • All the Raindrops

      At 2.50 a round, it’s pretty cheap for the size of components. 50 beo, 458 socom, 50ae, 44mag, 45LC aren’t that far away in price and they have a lot less powder copper lead and brass.

  • BrandonAKsALot


  • Bucho4Prez


    • Y-man

      Now, thats the BEST word of 2016! And I KNOW what it means!

  • Gary Kirk

    K, they neutered a 50.. Why? Oh, never mind, it’s Serbu and RN.. Overblown range toy. Hope they don’t touch that thing off during dry season, the muzzle blast will start a fire..

    • Dougscamo

      AND…light your eyebrows….

      • Gary Kirk

        And everyone else’s..

    • m-dasher

      you can think of this 2 ways…..1) they neutered a .50…….or 2) they made a 16″ more powerful.

      i mean, if you need a powerful 16″ barreled rifle……this is pretty ideal

      • Gary Kirk

        The muzzle blast alone is probably close to an M67 frag.. So, yeah might be great for CQB..

        • Joshua

          front toward enemy indeed

        • iksnilol

          Wear welding googles.

          • Gary Kirk

            Wear welding gear all day at work.. Don’t wanna when I’m home..

        • Jerry C

          Holy crud, I wouldn’t want to be in the same room with it when someone fired it.

      • All the Raindrops

        There are militaries using 14″ 50 cals right now.

        Yeah, it’s not gonna have the same range, but whatever. It’s still a good anti-material rifle for under 1k yards and weighs less than a full size.

      • dltaylor51

        The 50 BMG round uses up about 4 1/2” of the barrel for the chamber and the muzzle brake looks like it uses up another 3” so that doesn’t leave much barrel length left for rifling,the back blast from this thing would be brutal if full house loads were used.

    • Bierstadt54

      Someday when they start breeding T-Rex and they escape and overrun us, we’ll all be grateful to have a concealed carry 50 cal.

      • rooftopvoter

        (Thinking of a run n gun with this)

        • iksnilol

          I’m thinking of a Baikal double rifle in .50 BMG now. Sorta like their existing 45/70 model.

          • Only a LOT heavier since the 50 BMG round wasn’t designed to us black powder pressures. If you want 50 caliber in a double rifle, a 50/90 can be done without making the thing require a turret mount to carry or fire it. Some of the African express calibers are pretty impressive too. If you want a T-Rex gun, pick up a 600 Nitro Express double rifle. Not as long range as a 50 BMG but it goes boom with authority.

    • rooftopvoter

      Hmmm, slow burning powder, short barrel. Oh yeah, a weed burner for sure. Night shots must light up the sky.

    • RocketScientist

      Heh. This guy thinks there’s a “dry” season in Florida.

  • AC97

    Moronic at best, this ruins the .50 BMG.

    • TennTexan

      Ruins? Hardly. The RN50 is a cost-effective option that opens up the .50BMG cartridge to a large number of shooters.

      • AC97

        I’m referring to the 16 inch barrel…

        • TennTexan

          So it’s a range toy like my 7.5″ 5.56 AR? So what? I fail to see how anything has been “ruined.” Lighten up, Francis.

        • JustAHologram

          How do you feel about the 20″ version of the M82?

          • Gary Kirk

            20″ barrel, 5.5″ cartridge= 14.5″ real barrel.. Already ridiculous for a 50.. Looking at the pics, and considering common firearms law.. Probably a 16″ barrel, which includes chamber, that leads to around a 10.5″ actual rifled barrel.. Doubt that it’s enough to stabilize the 50’s bullet

          • JustAHologram

            Well it’s apparently enough for the job its designed, taking out vehicles within 500m.

          • valorius

            With a single shot that is extremely slow to reload?

          • JustAHologram

            No the M82 CQB but the RN50 might not be a bad budget option if the shooter is accurate enough

          • valorius

            It certainly seems like a really, really fun range toy, but i don’t think i’d ever rely on it for anything that requires me to trust my life to it, due to the slow reloading cycle.

          • JustAHologram

            If only there were a .50bmg handy rifle

    • Will

      meh, the people who would buy this (in all variants) are just going to fire a few rounds of machine gun ammo at 100 yards and tell their buddies about it. This fits their needs perfectly.

  • Cal S.

    If it weren’t so expensive…

    Or single-shot, break-action, and have a screw-open breech that takes longer to reload than a rifled musket.

    • TennTexan

      So expensive? Last I checked the RN-50 is the least expensive commercially-available .50BMG rifle on the market.

      • valorius

        Which means what?

      • Cal S.

        Indeed, but now thanks to the lapse of their “Introductory pricing”, it’s just $200 less than a bolt-action AR upper. If I’m going to spend that much, I may as well get the better product.

    • DaveP

      What are you shooting at with a .50 that you need to doubletap? I ask only for information…

      • Gary Kirk

        If it takes a 50 in the first place.. Why not hit it twice??

      • iksnilol

        First .50s were machineguns, because if I am bothering to shoot you with a .50 then I sure as all heck will bother to shoot you 5-10 times more.

      • Cal S.

        Granted, but the point being it’s an arduous reloading process when a single-shot bolt-action AR upper is just $200 more.

    • zardoz711

      yeah, not really a “break action” then
      now if it were a true break action i’d be interested

  • El Duderino

    Am I the only one who wants a super long, sturdy barrel for .50BMG? I mean, it’s for shooting stuff a long ways away…velocity and what not…anyone else?

    • Southpaw89

      Its for long range, and recoil junkies, this is for the latter.

    • nabab

      It’s for penetrating ipad armor. The .50 bmg is an anti materialism caliber.

      • El Duderino

        Gee, I think 12.7x108mm is more “anti materialistic”, right comrade?

        • iksnilol

          14.5×114 is more like “anti-everything”.

      • EdgyTrumpet

        >anti materialism caliber
        >$3+ a round

        >requires $1000+ rifle
        You better be of jokings comrade.

  • gusto

    when will we see it with a, 8inch barrel and a armbrace?

    • Gary Kirk

      The arm brace will be required after firing it..

      • Don La Rue

        …And a new set of teeth if they cheek-welded that monster.

    • TVOrZ6dw

      Thanks, I just spit coffee across my desk laughing. 🙂

    • CavScout

      Better question, when will we see ANY Serbu products actually come out…

  • USMC03Vet

    Pistol form next, pls!

    • Gary Kirk

      Has been done, German company that I KNOW of, and I believe some cats outta Wyoming or Montana did one as well I think.. Both incorporated hydraulic buffers.. None that I’d enjoy shooting, but given my own tenure towards self abuse when it comes to firearms.. I’d do it anyway… 😉

    • Amanofdragons

      Just no. If that happens we lose access to all a th AP, Api and all the other armor piercing ammo.

      • Threethreeight

        What armor is going to stop .50BMG ball sweetheart?

        • int19h

          I’d wager a dozen inches of AR500 would do it. Probably.

          • J Hat

            I had a .50BMG AP round penetrate about an inch into the end of a 10 inch long cylinder of (unidentified) tool steel before rebounding back out and going who-knows-where.

            Ball rounds left raindrop splashes less than 1/16″ deep on the same steel.

        • iksnilol

          Basically any armor rated to stop .50 BMG?

          No offense, but .50 BMG is pretty weak as far as big bores go. I mean, 20mm and 30mm and 14.5mm are waaaay better for messing stuff up.

  • DaveP.

    I wonder how useful this would be as a “bear country” weapon.

    • iksnilol

      If you want to burn down the forest, then yeah, sure, it’s effective.

      • Swarf

        Great, I’m in!

        • iksnilol

          Smokey was a lil’ punk a$$ b#### anyways, amirite?

  • Southpaw89

    Lets face it, this is one of the things that’s great about America; we don’t need a good reason.

  • Ark

    It’s a toy. Which is appropriate, because .50 BMG is a toy caliber in the civilian world.

  • You’d have to pay me more than the gun is worth to fire it, and I’d use the money to buy different guns.

  • SD

    Hey, Mark. How about you quit stalling and get to work on the SU-15 you promised to deliver over a year ago? The money you took in preorders not enough?

    • mazkact

      But we got to see the Fire Extinguisher gun.

  • Jake

    the usefulness of a shotgun slug only a magnitude more expensive

    • All the Raindrops

      10 or more times the range and much stronger. But ok.

      • Jake

        you gonna line up 1000 yard shot with a EOtech?

        • iksnilol

          Why not, some of us got good glasses 😉

  • Örn Johnson

    Is someone actually trying to sell this zip gun?

  • jerome

    If the barrel is short enough and there is enough space you can shoot one from anything. I saw Iraqi vet 1888 or I888 or somebody on YouTube fire one from a 12ga. single shot.I have the man flu so sorry for my grammar.. No screw you…not sorry…proud.

  • jerome

    I don’t like royal nonesuch. I barley like his name and that is the best part of him. He can’t weld worth a crap even by At department standards. I can do better with my $68.00 harbor freight “MIG”

  • I would love one of those….. at least as long as I could have it threaded for a suppressor. I would NOT want to be near that thing when it goes off without one. Hearing protection wouldn’t be adequate alone.