science

List of 3D-printed weapons and parts

List of 3D-printed weapons and parts is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand List of 3D-printed weapons and parts rather than just read about it. In short: 3D-printed weapons (mainly 3D-printed firearms) and parts that have achieved a level of public notability are listed in the table below. List of weapons and parts Legend Entire firearms Receivers and frames Receiver and frame are the parts that are legally considered a firearm and must be registered.

Key takeaways

List of 3D-printed weapons and parts belongs to science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect List of 3D-printed weapons and parts to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of List of 3D-printed weapons and parts from memory before moving on to harder problems.

Reference excerpt

3D-printed weapons (mainly 3D-printed firearms) and parts that have achieved a level of public notability are listed in the table below.

List of weapons and parts Legend

Entire firearms

Receivers and frames Receiver and frame are the parts that are legally considered a firearm and must be registered.

Firearms parts and accessories

Glossary of acronyms FFF Fused filament fabrication, a process that squeezes a molten filament. FDM Fused deposition modeling, a trademarked term for FFF. DMLS / SLM Direct metal laser sintering, a process that fuses metal powder by sintering. SLM Selective laser melting, a process that fuses metal powder by melting. ABS Acrylonitrile butadiene styrene, a common thermoplastic with relatively high heat resistance. ABSplus is a stronger, proprietary blend of ABS by Stratasys. PLA Polylactic acid, a bio-plastic. Easier to print, stiffer, and more brittle than other plastics. PLA+ is a term for any blend that enhances some characteristic. PETG Polyethylene terephthalate (glycol-modified), a plastic made by changing the chemicals used to synthesize the more common PET. Easier to print than ABS, and moderately better heat resistance than PLA. Often used in consumer-level printers when creators desire better heat resistance than PLA+ or need more flexibility. ECM Electrochemical machining, a process that uses electricity to chemically machine metal. Commonly used in 3D printed firearms to create DIY barrels with rifling, greatly increasing accuracy. FCG

Fire control group, the trigger mechanism of a firearm. Commonly used to refer to the AR-15 fire control group.

See also Gun control Gun politics in the United States Gun ownership List of modern armament manufacturers Improvised firearm

References

External links GunCAD Index, a lightweight, open source search engine for 3D-printed weapons and parts designs and small arms technical data,The Shittinator, 8th March 2025. GunCAD Index: The Google of 3D Printed Firearms, 3D Gun Builder, 13th March 2025.

Illustrations

Worked examples

Example 1 — a first encounter with List of 3D-printed weapons and parts

Start with the simplest possible case. Write down what List of 3D-printed weapons and parts claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to List of 3D-printed weapons and parts before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about List of 3D-printed weapons and parts ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of List of 3D-printed weapons and parts

In research: List of 3D-printed weapons and parts appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses List of 3D-printed weapons and parts in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: List of 3D-printed weapons and parts is common in secondary-school and first-year university syllabi. It links to neighbouring topics 3D printed firearms, Homemade firearms, Lists of firearms, so understanding it makes those chapters shorter.
In everyday life: Look for List of 3D-printed weapons and parts outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study List of 3D-printed weapons and parts in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what List of 3D-printed weapons and parts means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain List of 3D-printed weapons and parts out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is List of 3D-printed weapons and parts in simple terms?

3D-printed weapons (mainly 3D-printed firearms) and parts that have achieved a level of public notability are listed in the table below. List of weapons and parts Legend Entire firearms Receivers and frames Receiver and frame are the parts that are legally considered a firearm and must be registere…

Why does List of 3D-printed weapons and parts matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study List of 3D-printed weapons and parts?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on List of 3D-printed weapons and parts.