Instructables

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The R-SAR (rail-system assault rifle) introduces a new type of firing system: the knetix rail system. This system is rubber-band efficient because there is less friction between the bullet and the barrel, because the bullet does not come into contact with the other ammo and most of the barrel until it is fired. Unlike other guns, this one uses more of a bolt system than a ram system, meaning there is nothing sticking out when you load it. It is very fun to just play around it.

*UPDATED*
Updates include a safety, more efficient barrel, and a more efficient trigger system

Pros:
-contained firing pin
-good power (50-60ft with the rubber bands i used; you can use more)
-very original
-sturdy
-sounds SICK when you pull back the bolt
-8 round mag
-very accurate

Cons:
-bolt will snap if too much pressure is put on it
-uses 3 broken pieces

Enjoy

PLEASE RATE

 
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Step 1: Outer frames, supports, and trigger *updated*

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IMG_0138.JPG
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This step explains how to make the outer frames, the supports, and the trigger.

1. The two outer frames-make these
2. Make these
3. Connect with blue rods to form the stock/handle support (blue rods on handle do not have to be cut but it makes the handle much more comfortable
4. Support-any kind of spacer will work for the middle
5. Make these
6. Connect to form butt
7. Get these
8. Cut rods :(
9. Connect to make trigger
10. Attach supports to one frame, hold onto the other frame
11. Safety
12. Secure tan clip (pic taken after gun was finished)

Step 2: Inner frames and magazine

The inner frames of the gun with the magazine walls

1. Inner mag plates-make these
2. magazine walls and ammo guides-build these
3. Attach pieces like this
4. Attach second plate
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wieby9091 month ago
Is there a piece count?
knexsim2 years ago
plzzzz can i probably buy on of these out of kex i rly rly wont this gun but i only have a box of 5000 knex parts and i used them up makeing my knex arsinal and this would be perfect for my set but i dont wont to brake them up ill pay anny thing lol
is it possible to short this to like a pistol?
Kinetic (author)  headlessknight3 years ago
Unfortunately no because its length allows the rod to accelerate and shortening it would result in dramatic loss of power.
the pictures and steps are out of order fyi
i fixxed it YAY!!!!!!
complex looking but very nice handle meh... but 4.5*
kevinvos3 years ago
i've made it, it was very difficult but i got it, AWESOME man only when you load it he gets stuck between the two orange peaces ;D
23319953 years ago
BLAH! Can you help out with this? :l Cause the updated one ive noticed is different because of the trigger mechanism and stuffles. Im having a hard time figuring out the trigger, the 2 grey rods at the bottom of the gun and the barrel >__<"
Kinetic (author)  23319953 years ago
Wait, you don't understand the pics, or it isnt working?
An Villain3 years ago
Why isn't this featured? Multiple times. 5*.
Dirtyboyy3 years ago
cool ! 5* and fav.
Kinetic (author)  Dirtyboyy3 years ago
Thanks man I appreciate it!
Sharir17014 years ago
dude i built the gun and the rods just go out of the sides of the magazine, and when i take the ram all the way back, the bullet doesn't load, beacuse its stuck behind the ram even when it's loaded all the way....... PLEASE HELP !!!!!!!!!!
mulletman64 years ago
mine doesn't work properly :(. The "bullet" pops out from under the cut red rod :/
nilsjah1234 years ago
where do you buy knex?
http://cgi.ebay.com/KNEX-BUILDING-TOY-DAYCARE-26000-PLUS-PIECES-HUGE-LOT-/390220757249?cmd=ViewItem&pt=LH_DefaultDomain_0&hash=item5adaf83901#ht_787wt_754 There if you need any K'nex here's 26000 peices if you have $900 in spare change
try hoby city or knex.com
topcat1234 years ago
If this gun shrunk in the middle do you think you could fire smaller rods
SonicX 224 years ago
 the instructions are wayyyy difficult to follow.

0.5*
Kinetic (author)  SonicX 224 years ago
 Well no one else had a problem.
is the ammo SUPPOSED to not even get out of the barrel, or did I do something wrong?
NVM
my parents said i could have my knex back tommarrow and i could not get my own gmail
Kinetic (author)  KnexFreek5 years ago
Took away your k'nex? Thats harsh.
i know :(
Wyd they take it away?
to tell the truth, i actually cant remember!! That was awhile back and i forgit why!! It was probably something to do with school....

LOL
oops i didn't look at the date on it : )
 no problem!!!
If it involved school, just become a threat to the stability of your house so they won't take it away. That's what I did. Enough types and sizes of tools to take apart a 747, minus the blow torch.
LOL
Yeah. I could dismantle anything in my house. Easily.
 LOL.
Yeah... Bad idea for anyone to piss em off; I have about a hundred pounds of wrenches and more pointy tools lying around in my room. I count the D-TAB as a tool.
 LOLOLOLOL OMG
What? I use it as a shotgun seeing as I don't have the pieces to make the turrets on hand.
why can't you get your own gmail? ill set up an accy for you on gmail, just give me the username you want and ill make it for you. also gonna need your name for accounting purposes.
coulds u do that for me????? thankyou sooooooooooooooo much idk u can make a username just use the word kevin and tennis thankyou sooooooo much ps respond to this in the morning cause i have to go to bed my parents are strict tonight srry... And thanks again . kevin
i messaged you with the link to make an account for it; just use that.
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