POTD: General Dynamics RM277 – Next Generation Squad Weapon

Eric B
by Eric B

TFB’s Matthew Moss did an excellent article about the RM277 – General Dynamics’ Next Generation Squad Weapon and in today’s Photo Of The Day we will follow up with some more speculations.

And the photo above of course, which is the main attraction!

Today we are looking at the RM277, General Dynamics’ rifle/carbine entrant into the US Army’s Next Generation Squad Weapon (NGSW) program.

The RM277 is a bullpup carbine chambering what is called .277 TVCM, a True Velocity-designed 6.8mm cartridge with a polymer case for weight savings.

Details are scant on how the gun works right now, but they have said it is gas/recoil operated. We assume that means gas-assisted short recoil (the barrel moves slightly while shooting) but this isn’t official yet.

We estimate the RM277 to be about 770mm (30.3″) long with the suppressor affixed. This is not an official figure. We estimate this going off of the M-LOK holes.

Their Flow-Through Suppressor was heavily featured in its debut video to keep it below US Army sound requirements for the program. It uses M-LOK attachment points and a picatinny rail up to.

The ELCAN SpectreDR 1-4x is featured on this graphic as it was one of the optics featured in its debut video, but there were several optics featured.

It has ambidextrous fire controls, side switchable charging handle, and presumably the capability to switch the side of ejection for lefties. There is an ejection port sized hole with a covering on the other side, so this is a safe bet. The magazine catch appears to be in front of the magazine on the mag well.

Picture and text quote from Graphica Mechanica, used with permission.

The photos are based on the originals from General Dynamics.

Looking at it, I like it. But I think it would benefit from a steeper pistol grip like the Magpul K2+.

What do you think? How would you configure the RM277 if you were given free hands? Which optic, mount and furniture would you chose?

Eric B
Eric B

Ex-Arctic Ranger. Competitive practical shooter and hunter with a European focus. Always ready to increase my collection of modern semi-automatics, optics, thermals and suppressors. TCCC Certified. Occasionaly seen in a 6x6 Bug Out Vehicle, always with a big smile.

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  • Potates Potates on Oct 29, 2019

    Looking trough Graphica Mechanica's other stuff i found that he came up with his own version of telescoped cartriges and it made me realise how Textron wouldn't have so much trouble as they had if they just gave those CT cartriges rims. We could have had Aarma 3's MX rifles.

    • See 1 previous
    • Potates Potates on Oct 30, 2019

      @NukeItFromOrbit Textron themselves in an interview but that is not what i meant. I'm sorry i should have articulated that differently, i meant trouble with the choices of weapon design the CT cartrige forces them to take, one quick glance at thier rifle designs shows that something went wrong somewhere, and simply giving the CT cartrige a rim (and sufficient taper) would've allowed them to go with an AR chambered for CT rounds or something.

  • Gifford Metz Gifford Metz on Oct 29, 2019

    I went to AUSA and got to look at the RM277's extensively and talk to
    the guys at General Dynamics. The biggest innovation that stood out to
    me was that they apparently have solved the bullpup trigger problem by
    eliminating the need for a transfer bar (this is according to them;
    obviously I didn't get to open up the gun and see it). I suspect the
    trigger mechanism resembles the EM2 or the FG-42 (which seems to have
    inspired some of the other features on this weapon, such as the
    open/closed bolt firing depending on whether it is on full/semi-auto.

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