3D-printed machine gun barrels

We have designed a few machine-gun barrels for modelers who would like to add a little detail to their airplanes. These can be used simply as a decoration for your model, or to create scale replicas. The ones pictured here are appropriate for larger models (1/11 or 1/12 scale). TWO gun barrels are included in the package.

These are not "perfect scale replicas" but look a lot better than plain tubes. We are able to make these in different sizes and configurations, so if you need a slight adjustment just contact us since we can produce special orders.

We have three to pick from here:

30-caliber type (2 kinds to pick from)

50-caliber, scaled to match the Browning AN/M2 or M3

SPECIFICATIONS:

30-cal version 1: (Solid, NOT hollow, with larger holes):

• material: black PLA
• length: 87.3mm (3 - 7/16 inches)
• diameter: 6mm
• weight: 2 gm
• tapered tip with opening, holes along entire length 4-hole alternating pattern

30-cal version 2 (hollow sleeve, smaller holes):

• Material: Black PLA sleeve and 3.5mm carbon-fiber gun tube
• Length: 100mm (4 - 15/16 inches) - not including the protruding tip
• Outer sleeve diameter: 5.5mm
• Total weight 2.2 gm with CF tube included
• hollow sleeve - the inside diameter fits 3.5mm CF tube
• holes stop 5/16 from one end of the barrel, 4-hole alternating pattern
• 3.5mm unpainted CF tube included (shown painted here) - to insert into the sleeve
• 

"Close to 1/11 scale" 50-cal M2 gun barrel (hollow sleeve, larger holes):

• Material: Black PLA sleeve and 3.5mm carbon-fiber gun tube
• Length: 100mm (4 - 15/16 inches) - not including the protruding tip
• Outer sleeve diameter: 5.5mm
• Weight: 2.2 gm with 3.5mm CF tube included
• hollow sleeve - inside diameter fits 3.5mm CF tube
• holes stop 1/2" from the end of the barrel
• 3- hole alternating pattern with the correct number of holes (rows of 10 and 9)
• 3.5mm unpainted CF tube included (shown painted here) - to insert into the sleeve

Here is an example of what the 50-cal barrel looks like installed in a scratchbuilt M2 body, representing a waist gun from a B17 at 1/11 scale:

For the "scale police" - here are some spec details on the Browning M2 50-cal.:

M2 total length: 72.4" 1/11 scale: 6.58" My model pictured above: 6 inches

M2 gun barrel length: 36.19" 1/11 scale: 3.29"/83.57mm Model: 83.5mm

(the model is 100mm long, the extra is for inserting into the gun stock)

M2 gun barrel diameter: 2.3" 1/11 scale: 0.21"/5.3mm Model: 5.5mm

M2 length of 10 cooling holes: 24.86" 1/11 scale: 2.26"/57.4mm Model: 57.5mm

Space between cooling holes (on center): 2.76" 1/11 scale=0.25"/6.4mm Model: 6.4mm