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  2. Parts kit - Wikipedia

    en.wikipedia.org/wiki/Parts_kit

    In addition, under US gun law, a receiver that is legally a machine gun cannot legally become semi-automatic. [4] There is no federal restriction on the purchase and import of machine gun parts kits (minus the barrel), however. [3] Parts kits are available for many firearms including the AR-15 and AKM variants. [5] [6] [7]

  3. Polymer80 - Wikipedia

    en.wikipedia.org/wiki/Polymer80

    Polymer80, Inc. was an American manufacturer of firearms parts kits that included unfinished receivers (also known as "80 percent" receivers) used for making privately made firearms.

  4. List of 3D-printed weapons and parts - Wikipedia

    en.wikipedia.org/wiki/List_of_3D-printed_weapons...

    Unlike the many early 3D-printed firearm designs, which were overbuilt in order to withstand the pressures and strain on the material from modern gunpowder cartridges, the Reprringer is small and only slightly larger than an equivalent gun made from steel. [10] Solid Concepts 1911 DMLS [13] 2013, November [13] Weapon: Browning 1911 handgun [2] [13]

  5. The Supreme Court orders makers of gun parts to comply with ...

    www.aol.com/news/supreme-court-orders-makers-gun...

    The Supreme Court on Monday ordered two internet sellers of gun parts to comply with a Biden administration regulation aimed at ghost guns, firearms that are difficult to trace because they lack ...

  6. Glossary of firearms terms - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_firearms_terms

    This refers to parts that are designed and manufactured such that they have a relatively tight-tolerances and high level of accuracy. Matchlock: An obsolete mechanism for discharging a firearm. Medium machine gun: A class of machine gun often defined as being designed for carry and use by multiple operators, firing a full-power rifle cartridge.

  7. Receiver (firearms) - Wikipedia

    en.wikipedia.org/wiki/Receiver_(firearms)

    A disassembled Mauser action showing a partially disassembled receiver and bolt. In firearms terminology and law, the firearm frame or receiver is the part of a firearm which integrates other components by providing housing for internal action components such as the hammer, bolt or breechblock, firing pin and extractor, and has threaded interfaces for externally attaching ("receiving ...

  8. Muzzle brake - Wikipedia

    en.wikipedia.org/wiki/Muzzle_brake

    In mid-1930s, Bofors designed several successful artillery pieces (e. g. 37-mm and 105-mm guns) with new perforated muzzle brakes, so-called pepper-pot muzzle brakes, a design invented by then Swedish artillery captain Harald Jentzen and therefore known in Sweden as a "Jentzen-brake" (Swedish: Jentzen-broms). [11]

  9. AOL Mail

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    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!