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RMACR (Red's Mini Adaptive Combat Rifle) V.2 Answered

Apart from my Calico M-950 and my Magpul Masada ACR, the RMACR is my favorite build of all time. I sorta consider it my TR8 of magazine guns. As this is the case, I bring you the RMACR V.2. While it is not a huge change from the first version, it is still a great gun. Moreover, it may be generic to some people, but if a generic gun does its job, and does it well, what does it matter if it is generic. With ranges exceeding 50 ft., a 16 rd. magazine, a new (sturdy) stock, nice sights, this gun would excel in an indoor K'NEX war.

  • Looks great (IMO)
  • Sturdy (except the pistol grip)
  • New stock
  • Really nice pin-pull-length
  • 16 rd. magazine
  • Relatively good rate-of-fire
  • Really accurate
  • Fun to shoot

This gun can fire the ammo you see in pic #14 (which is THE best ammo, IMO), or it can fire white rods. It is very customizable, as you could change almost anything (except the mech) and it would still work great. Sadly, it does use broken pieces, and it's magazine is not "preloadable," but the gun is nice overall.

I am posting this as a forum topic because I want to gauge interest in me posting a full set of instructions.

-The Red Book of Westmarch


"i don't know what its called yet"

i have an idea if you are intrested.

name: "Reds Back-Pull Underbarrel Shorty" aka the RBPUS

No, it should be up there, by my description of the gun, above the pictures... Is it not there?


5 years ago

Instructions :D

Yup, eventually. BTW, you need to build more, I miss seeing stuff from you... *begins to cry* =D


5 years ago

I like it. I built a similar weapon but it didn't fire. It was the precursor (actually an in between, I had an older version) of that bullpup model I made. Your stock seems much stronger though. And of course it's awesome that yours actually fires. I might just have to see if I can do something similar with an improved version of mine. Suppose you could try a bullpup repeating slingshot along the same lines of "generic model" as this?


Cool, yours kinda reminds me of a mix between an H&K UMP and a AK-47U. Yeah, my stock really is pretty sturdy... The only thing I would worry about when it comes to that repeating slingshot bullpup is that how would I keep a round from "chambering" (loading in to the "chamber") before I had pulled the bands back?

Actually, I guess I forgot but I made another model before this one long ago that was essentially a rip of my UMP body but I changed the charging handle to be purely aesthetic and then it used this type of magazine. It was subconsciously the inspiration for the above weapon.

Oh yeah, I figured you'd ask that. Sorry it took me a few days to get back to you. It's simple, you have a roofed barrel for one, at least just to start with. Second, you have a piece that goes over the magazine. When you pull the band back, you push the piece back into the stock allowing a round to come up from the magazine. From there, you could either have the trigger catch behind the magazine or after the round has been grabbed, let the band go forward out of the magazine and catch on the trigger in front of it. The latter might be a little easier but slow down the rate at which you fire it.


5 years ago

honestly this looks exactly the same IMO


5 years ago

External pusher.. eww. But other than that this owns hard.

True, I'm not a big fan of either external or internal pushers, especially for this type of magazine. Thanks all the same. =D

Nope, not really. I just don't like either alternative. The external pushers stick out the bottom of the magazine, the internal pushers make the mag look ugly... I could go on, but I don't want to bore you.