I was at Keith’s machine shop and saw this oddity. It is an AR-15 upper receiver with picatinny rails built into the sides. Both sides.

Keith is borrowing it to take measurements off it but does not know who makes it. I was unable to find anything online about this upper receiver. I am curious what the maker was thinking when they made this. I can only see two logical explanations other than mall ninja status of adding accessories for the sake of adding accessories.

  1. Building an AR without a handguard. This way you can still attach accessories like flashlights.
  2. Adding a mini red dot sight like in 3Gun

However with the lack of a brass deflector, I am not sure if the ejected brass would hit the red dot if it was mounted on the right hand side for a right handed shooter.

But if that was the purpose, then why is there a small single slot right in front of the ejection port?

Have any of our readers seen an upper like this? Any ideas as to who makes it?


Edit: Thanks to our reader, Zed, he identified this as a DPMS upper receiver part number FTT-3R.



  • ostiariusalpha

    RRA Delta CAR stock, DD RIS II handguard, and a TufForce flash hider, then you’d be good-to-go.

    • Giolli Joker

      A rail gun.

  • Lee M Attinger

    Finally, someone found a way to mount accessories to an AR15!!!!!

    • Drew Coleman

      Well those abrasive bumpy nubs just aren’t conducive to mounting optics and lasers.

  • PK

    I’ve made similar uppersfrom raw forgings, and usually it’s just being made because “why not?”

    Personally, being able to use the full top rail for sights and the RH side for a rail-mounted brass catcher would be my use, but that doesn’t explain the LH rail.

    • Christian Hedegaard-Schou

      Who makes a raw forging with bosses for rails on both sides?

      The standard raw forging for uppers doesn’t have enough material to put rails in the side like that.

      • PK

        That’s why I said similar. The uppers I’ve made started as the usual
        A4 profile, I milled the RH features off, milled small flats on each side of the ejection port and then TIG welded short lengths of rail blank on. The real pain was having them heat treated again after all that!

        If there’s a company producing oversized forgings for uppers with side rails, I’m not aware of them.

        • roguetechie

          If you ever find a company doing said oversized forgings let me know and I’ll do the same. I can think of a few really good reasons for doing this.

  • MrBrassporkchop

    Lol backup offset RMR double as a brass deflector.

  • Christian Hedegaard-Schou

    I’m guessing a Chinese made receiver for the cheap mall ninja gun show aftermarket.

  • Russ Kell

    Now I have a place to mount my Taser, and ZiP22. Quad-rail mounting was just not sturdy enough.

  • DIR911911 .

    if you matched up a rail on the handguard it would be a good location for 45* back up sights , a good long radius too

    • That would be absurd though

      • DIR911911 .

        accurate back up sights are absurd?

    • noob

      that was my first thought too – 1 o’clock rails on the handguard or those offset rails that you attach to the 12 rail and then go either right or left would match up roughly, and then you can max out your windage and/or elevation to get on paper.

      or mill up a custom front sight rail offset and have it dead on

  • Scott Connors

    Didn’t JP Enterprises make an upper like this? I’m pretty sure that I have seen a picture of a similar upper in a G&A BOOK OF THE AR-15 from a decade or so ago.

    • Brad Wharton

      Yes I think they did a few years ago

  • iksnilol

    Dude, the whole point of running without a handguard is weight reduction.

    Big rails aren’t lightweight.

    • Nicholas C

      Not necessarily. I saw a 9mm AR build that focused on OAL. No handguard.

      • iksnilol

        Seriously? Can’t one just get a free float tube and chop to desired length? Thus have a handguard whilst maintaining desired length?

      • Cymond

        How short was the barrel? I have a cheap 4″ handguard on my 4.5″ 9mm barrel.
        (I plan to run a recessed suppressor under a long handguard, so I’m using a cheap handguard until I get the suppressor.)

  • Zed

    DPMS used to make this. Part# FTT-3R

    • Nicholas C


    • LilWolfy

      Those have been around a while. Was wondering what the hoopla was about.

  • Shaun Connery Oliver II

    I was thinking of a brass catcher in front of the ejection port because X PRODUCTS did somewhat the same thing.

  • USMC03Vet

    RMR is the new brass deflector.

    • JoelC

      My thoughts exactly.

    • Nicholas Dunham

      RMR mount behind a brass deflector could be cool, though…

      • jerome

        Opt for the lifetime warranty and you’ll be good to go!

  • Konflict7993

    Full cheese grater.

  • El Duderino

    Soooo 2009.

  • Dr. Longfellow Buchenrad

    For when you run out of space on your 15″ quad rail…

  • Anonymoose
    • noob

      I see what you did there.

  • Colonel K

    Great, another accessory to rail over.

  • Bad Penguin

    Its a way of getting around having a barrel heavy rifle. Never could understand why people put so much crap on their AR. Barbie Dolls for boys I guess.