Knetix R-SAR K'nex assault rifle by Kinetic

  Video is not working right now(at least for me).  Just right-click and hit "watch on YouTube"

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*

IMG_0134.JPG
IMG_0138.JPG
IMG_0141.JPG
IMG_1344.JPG
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)
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knexsim says: Oct 15, 2011. 5:28 AM
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
headlessknight says: Jul 21, 2011. 7:58 AM
is it possible to short this to like a pistol?
Kinetic (author) says: Jul 21, 2011. 8:20 AM
Unfortunately no because its length allows the rod to accelerate and shortening it would result in dramatic loss of power.
Football viking boy says: May 13, 2011. 5:02 PM
the pictures and steps are out of order fyi
knexsuperbuilderfreak says: Dec 18, 2010. 10:58 AM
i fixxed it YAY!!!!!!
aleceatsfood says: Dec 15, 2010. 6:32 PM
complex looking but very nice handle meh... but 4.5*
kevinvos says: Dec 13, 2010. 6:31 AM
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
2331995 says: Dec 8, 2010. 1:54 AM
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) says: Dec 11, 2010. 10:06 AM
Wait, you don't understand the pics, or it isnt working?
geodez says: Dec 10, 2010. 5:49 PM
Why isn't this featured? Multiple times. 5*.
Dirtyboyy says: Oct 13, 2010. 3:41 AM
cool ! 5* and fav.
Kinetic (author) says: Oct 13, 2010. 1:40 PM
Thanks man I appreciate it!
Sharir1701 says: Sep 27, 2010. 5:27 AM
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 !!!!!!!!!!
mulletman6 says: Aug 10, 2010. 2:19 AM
mine doesn't work properly :(. The "bullet" pops out from under the cut red rod :/
nilsjah123 says: Jun 26, 2010. 2:13 AM
where do you buy knex?
geren11 says: Jul 22, 2010. 10:00 PM
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
kellykell says: Jun 28, 2010. 7:29 PM
try hoby city or knex.com
topcat123 says: Jul 6, 2010. 9:09 AM
If this gun shrunk in the middle do you think you could fire smaller rods
SonicX 22 says: Apr 11, 2010. 5:12 PM
 the instructions are wayyyy difficult to follow.

0.5*
Kinetic (author) says: Apr 12, 2010. 12:11 PM
 Well no one else had a problem.
FredTheBiologist says: Dec 23, 2009. 8:17 AM

Outstanding effort my friend i give you 5 for this, ive built it, it never jams and is real accurate plz carry on making these AWSOME weapons!!!

Kinetic (author) says: Dec 23, 2009. 11:58 AM
 Thanks!  Have you seen my dual turret assault bow? It has become one of the most popular guns on the site.  Build it and you'll see why.
mettaurlover says: Sep 20, 2009. 8:27 PM
is the ammo SUPPOSED to not even get out of the barrel, or did I do something wrong?
mettaurlover says: Sep 20, 2009. 8:29 PM
NVM
KnexFreek says: Sep 21, 2009. 3:45 PM
my parents said i could have my knex back tommarrow and i could not get my own gmail
mettaurlover says: Sep 21, 2009. 5:08 PM
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.
KnexFreek says: Sep 21, 2009. 8:19 PM
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
mettaurlover says: Sep 21, 2009. 9:59 PM
i messaged you with the link to make an account for it; just use that.
KnexFreek says: Sep 22, 2009. 12:43 PM
ok ill make one but my parents will wonder why they arent getting barrrages of instructables emails
mettaurlover says: Sep 22, 2009. 1:13 PM
just transfer your *current* account to the gmail account, then make a second account using your parents address. or, if that doesn't work(the making a second accy with the address) tell them that you made a free account on gmail so that their inbox wouldn't be cluttered anymore. they'll actually <em>thank</em> you for making one if you normally get a ton of ibles mail.<br/>
KnexFreek says: Sep 22, 2009. 4:45 PM
begged my parents all day and they finally said yes!!!!!!!!!!!!!!!! ill make one tonight and ill email you the new email adress
mettaurlover says: Oct 4, 2009. 11:16 AM
you made it yet? i dont have anyone new in my contacts or a message saying you did...
KnexFreek says: Oct 4, 2009. 12:13 PM
No cause when my dad came home he dissagreed with my mom, then he yelled at me, and told me I could only use my moms :(
mettaurlover says: Oct 4, 2009. 1:33 PM
trust me:if your dad thinks you're not mature enough to get your own email, side with your mom. anyway, females will always win in fights against males; they don't have the equipment we do downstairs to kick...
DJ Radio says: Nov 2, 2009. 8:02 PM
The only time dads win is when your mom is actually supporting what you do.
lioneatr says: Dec 21, 2009. 5:13 AM
 true dat
mettaurlover says: Nov 12, 2009. 7:09 AM
yyyyeeeeeeeppp.
mettaurlover says: Sep 22, 2009. 5:05 PM
you don't have to send me amil; if you use the link i PM'd you, you'll be automatically added into my contacts and ill be added to yours.
Kinetic (author) says: Sep 21, 2009. 4:58 PM
Took away your k'nex? Thats harsh.
KnexFreek says: Sep 21, 2009. 8:19 PM
i know :(
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