Introduction: The D3 Lego Semi-Automatic Handgun
-It fires a (2x3)F round, which is larger than the (2x2)F round fired in the D2 (meaning it has more stopping power)
-It is a smaller gun than the D2, in height and length
-More comfortable handle
-More durable gun design (meaning more rubberbands than 6 can be added in the gun)
-It features a leaf firing sight (like the M16's sight), as well as a tactical rails
-The magazine is easier to put into the gun and remove
-The magazine can lock inside the gun, using a lever
-The gun looks better than the D2 (I think it kind off looks like the Thompson Submachine Gun, but thats just me)
-Improved reliability when firing (no jamming-where the round gets stuck in the gun- and greatly reduced chance of double-fire- when 2 rounds or fired off at almost the same time)
-Simpler design, meaning it is easier to build
-Shorter reload time than the D2
-The firing system has also been simplified, with only 2 gears on the side, opposed to 4 (in the D2)
WEBSITE: http://sites.google.com/site/bblegobrickworks/Home
WHEN YOU ARE DONE THIS INSTRUCTABLE, GO TO https://www.instructables.com/id/The-D31-Semi-Automatic-Handgun-Mod/ AND ADD ON THE IMPROVEMENTS!
Soon I will start work on the D3.1 . In this mod, I will fix some issues with the top of the gun, the area around the magazine, the magazine lock will be improved, some kind of safety will be added to prevent you from accidentally pulling the trigger, and a larger round capacity will be added to the gun (maybe 7 or 8 round capacity)
Step 1: Handle
This is the hand hold on the back of the gun.
Step 2: Rubberband Holder+ Magazine Lock Mechanism
For magazine lock mechanism, you will need a very small piece of tape (as in the smallest that you can possibly tear off- maybe like 5mm in length, and whatever the width of your tape is)
Step 3: Magazine
This magazine holds 6 (2x3) bricks (each of which have a flat piece on top).
Step 4: Adding Onto the Handle
This step begins to add a top onto the handle.
Step 5: Trigger + Part of Firing Mechanism
Fairly easy step.
Step 6: Building Up the Back
This just creates a base for the gears to go.
Step 7: Some More of the Firing Mechanism
This creates the firing gears and creates part which stops the 'L' shaped piece from going too far back.
Step 8: The Rest of the Firing Mechanism
This finishes the firing mechanism.
Step 9: Building Up the Back Some More
Short, easy step.
Step 10: Bottom Magazine Holder Part 1
This is the area will hold the magazine in place inside the gun.
Step 11: Bottom Magazine Holder Part 2 + Assembly of the Bottom
This finishes the bottom magazine, attaches the piece made from step 10+11 to the main body, and attaches the piece made from step 2 to the main body.
Step 12: Firing Runway + Building Up the Sides
This fills in the middle of the gun, finishes the firing runway, and builds up the sides of the gun.
Step 13: Top of Gun + Sight
The top of the gun only goes up to where the magazine is, and after that there is space so that the round can easily leave the gun. The sight up of: the tactical rails, the flip up 'bunny ears' rear sight, and the forward sight. (This sight is supposed to work like the M16 sight.)
Step 14: Counterweight Rubberbands
The rubberbands attached to the trigger to keep it from firing.
Step 15: Magazine Placement + Building the Ammo + Magazine Rod
Put the magazine in so that the notches are on the sides. The ammo is 6 (2x3) pieces, each with pieces on the top.
Step 16: Loading Part 1 (Firing Rubberbands)
The D3 needs 6 firing rubberbands. NOTE: Before loading the rubberbands or ammo, you need to put a lubricant (vaseline) on the firing runway, the sides of the magazine (on the inside of it) , each ammo piece all around it, and on the magazine rod (on the part which will make contact with the ammo and inside of the magazine)
Step 17: Loading Part 2 (Loading the Magazine)
Very simple. Put the 6 rounds into the magazine (in the hole in it), then, put the magazine rod on top of all of those, and attach the rubberbands on the magazine to it.
43 Comments
11 years ago on Step 3
if you don't have the ball things do you need them?'
Reply 1 year ago
Use these
Tip 1 year ago
My gun
Tip 1 year ago on Step 17
Not enough bric
12 years ago on Introduction
im looking for a lego gun that has NO GEARS. please help
by the way nice gun 4.5. 4.5 because you used gears.
Reply 2 years ago
What's evil about the gears?
Reply 12 years ago on Introduction
thats semi-automatic
8 years ago
it's a bullpup short barreled rifle
10 years ago on Introduction
Could you tell how many of each piece so I can get all the pieces I need?
11 years ago on Introduction
hey bitterberry do you take apart each gun to make the other or are you a lego hoarder
11 years ago on Step 8
the only piece i don't have is that tiny gear. does any one know where i can get one?
Reply 11 years ago on Introduction
go to lego.com and try to find "pick a piece" under catorgories, i think. real cheap like under $1
11 years ago on Introduction
Awesome!!! This is an awesome gun! It looks cool and has a sweet mag! This gun can definitely rival K'nex guns and it is semi-auto which is great. I built my own sight that kind of looks like a reflex sight and added the mods which are great. I gave this Instructable 5 stars!
11 years ago on Step 2
What kind of "studs" are you talking about? Like the ones that you collect in Lego games or like a 1x1 piece?
12 years ago on Step 16
i found out that if you put all 6 rubber bands on you need 5 on the trigger as a counter weight so it doesnt go off accidently
12 years ago on Step 16
What Size rubberbands do you use and where do yo get them
12 years ago on Step 4
um if this pictures right, it should be a one x nine
12 years ago on Introduction
hey dude..... i like that idea u gave to us right now but im going to make one of my own
12 years ago on Introduction
This. Is. Amazing. This is possibly the best build on Instructables, and its even semi-automatic. I am a big fan of yours, bitterberry, and i hope to see more lego guns coming soon!
13 years ago on Step 1
can you please pm me a full, accurate parts list? im ordering the parts from bricklink so i can make it