B&B APC9 - Brewger & Boy Advanced Plastic Carbine (Functional Prop/Toy)

This is a toy for cosplay or display purposes only! Never brandish this as a real weapon or bring it out in public, this is a toy modeled off of a REAL LIFE firearm, treat it as such. Just because you know it's a toy, doesn't mean other people will.  Enjoy, be safe, and be smart!

This is a semi-functional prop inspired by the APC9 submachine gun. As it is now it makes a great display piece or prop but I am still working towards making it a repeating launcher with shell ejection. I'll try to update with a build guide & general improvements, but for now I hope those up to the task enjoy! Let me know if there is any other accessories you would like! 

Print Details:

This is not a good print for beginners,  make sure you have your support settings dialed in well for best results. Most parts will have to have their orientation changed in the slicer

Printer used: Bambu Labs P1P

Materials Used: PLA+, TPU-92A, Glow in the dark PLA

Nozzle Size: 0.4 mm

Layer Height: 0.16 mm

Shell (Walls/Top/Bottom): 3-4

Infill: 15-25%

• 100% Infill is recommended for all Stock, Grip and Barrel parts if the its intended to be used as a toy as opposed to a display piece.  

Supports: Required for some parts.

Printed Parts:

Core Parts: (Use PLA, PLA+ or PETG for these parts) 

1 x Lower Frame

1 x Upper Frame

1 x Grip 

1 x Butt 

1 x Trigger

1 x Striker

1 x Striker Latch 

1 x Bolt

1 x Charging Handle

1 x Barrel

1 x Muzzle

1 x Magazine Catch

2 x Side Rail

1 x Magazine

1 x Lift Table

1 x Magazine Base

Accessories: 

Front Grip:

1 x Front Grip (PLA+)

1 x TPU Sleeve (Must be printed in TPU or it will not fit over the front grip)

Fixed Stock:

1 x Stock Attachment Point (PLA+)

1 x Stock Rail (PLA+)

1 x Stock (PLA+)

1 x TPU Stock Pad (This was designed to be printed in TPU for look and feel, but any other filament should work as well)

Folding Stock:

1 x Folding Stock Attachment (PLA+)

1 x Folding Stock (PLA+)

1x Folding Stock Latch (PLA+)

1 x Folding Stock Pad (TPU)

Flip-up Aperture Sights:

1 x Rear Sight Mount (PLA+)

1 x Rear Sight (PLA+)

1 x Front Sight Mount (PLA+)

1 x Front Sight (PLA+)

2 x Glow Dots (I used glow in the dark filament for the cool factor but a bright colour of your choice will accomplish the same effect) 

1 x Front Sight Post (Same as above)

Drum Magazine: (PLA+)

1 x Drum Magazine

1 x Drum Magazine Pusher (scale down by 5% in slicer)

1 x Drum Magazine Crank

1 x Drum Magazine Crank Arm

Additional Hardware:

For the Core assembly (no accessories):

5 x M3*25 Bolt

4 x M3*10 Bolt

6 x M3*6 Bolt

4 x M3 Nut 

Bolt Spring - OD: 10 mm, WD: 0.6-0.8 mm, Length 115 mm.

Striker Spring - OD: 10 mm, WD: 0.6-0.7 mm, Length 90 mm.

305mm Compression Spring Wire Dia 0.3 0.4 0.5 0.6 0.7 0.8 1 - 5mm Outer Dia 3 3.5 4 4.5 5 5.5 6 7 8 10 12 - 60mm Length 305 mm (aliexpress.com)

Striker Latch Spring - Pen spring

Magazine Catch - Pen Spring

Magazine:

Spring - OD: 10 mm, WD: 0.6 mm, Length 160 mm.

Front Grip:

1 x M3*25 bolt

Fixed Stock:

3 x M3*12 bolt

4 x M3*6 bolt

Folding Stock:

1 x M3*25 bolt

3 x M3*20 bolt

4 x M3*6 bolt

Aperture Sights:

2 x M3*16

Drum Magazine:

Spring - OD: 10 mm, WD 0.6 mm, Length: 120mm.

3 x M3*8 bolt

Tools:

• Screwdriver
• Adhesive (Hot glue or Super Glue)
• Sandpaper/File
• Patience and creativity

CHANGE LOG:

January 10, 2024:

• Updated lift table - It is now functional and will feed projectile into barrel, still working on some sort of ejection method for the empty casing.

January 24, 2024:

• Added Functional Drum style magazine.