Grizzly (.22-caliber rifle)
| G22 Grizzly | |
|---|---|
| Type | Rifle |
| Place of origin | Canada, United States |
| Production history | |
| Designer | Various (Matthew, Mussy, zer0fux, Coop) |
| Designed | 2013–2023 |
| Manufacturer | Community-developed (FOSSCAD, GCI, AWCY?) |
| No. built | Multiple (primarily 3D-printed) |
| Specifications | |
| Mass | Varies by version |
| Length | Varies by version |
| length | Varies by version |
The G22 Grizzly is a series of 3D-printed, single-shot, break-action rifles that fire .22LR cartridges. Initially developed in 2013 by a Canadian designer known by the pseudonym "Matthew", the G22 Grizzly has evolved through multiple iterations, with each version improving design, functionality, and printability.[1] It is known for its high level of 3D-printability, requiring minimal non-printable metal parts. The latest version, G22v4, was released in September 2023.
Development and Versions
[edit]G22v1 (Grizzly 1.0)
[edit]The first version, commonly known as the Grizzly 1.0, was developed in Canada by "Matthew" in August 2013 using a Stratasys Dimension 1200es printer, which cost approximately $10,000 at the time.[1] It was inspired by the Liberator (gun), a 3D-printed handgun developed by Cody Wilson and Defense Distributed.[2] Constructed from ABS plastic, the Grizzly 1.0 could fire a single shot before breaking due to strain.[1]
According to "Matthew", the rifle took three days to build and around 27 hours to print, with the receiver taking 13 hours, the barrel 6.5 hours, the stock 5 hours, and internal parts 2 hours.[1] The only metal component in the design was a 1-inch roofing nail used as a firing pin.[3]
G22v2 (Grizzly 2.0)
[edit]Released shortly after the first version, Grizzly 2.0 featured a 50% larger barrel with rifling, a larger receiver, and a new hammer for improved durability.[1] It was capable of firing up to 14 rounds before sustaining damage from the strain.[2] The Grizzly 2.0 maintained the .22LR caliber, used ABS plastic for its construction, and required minimal metal components—similar to the first version.
G22v3 (Grizzly v3)
[edit]The G22 Grizzly v3, released in early 2023 by designers "Mussy" and "zer0fux", offered a more modular design with enhanced customization.[4] It retained the break-action mechanism and primarily 3D-printed construction. It was compatible with the AWCY Protobarrel, and the release included detailed assembly documentation. The only non-printable parts required were a metal firing pin, breech plate, and spring.
G22v4 (Grizzly v4)
[edit]The latest version, G22v4, was developed by "Coop" under the organization GCI and released on September 21, 2023.[5] It incorporates the AWCY? 10/22 Proto-Barrel and focuses on improved printability, durability, and ease of assembly. It remains a .22LR, single-shot, break-action rifle, designed for maximum printability with minimal metal parts.
Printer
[edit]The printer used for the initial development of the Grizzly series was the Stratasys Dimension 1200es, which was used to create the original Grizzly 1.0 and 2.0 versions.[1] It utilized ABS plastic as the primary material.[2]
See also
[edit]References
[edit]- ^ a b c d e f "NBC News: First 3-D Printed Rifle Fires Bullet, Then Breaks". Retrieved 2024-10-26.
- ^ a b c "The Verge: World's First 3D-Printed Rifle: The Grizzly". Retrieved 2024-10-26.
- ^ "Mashable: World's Possibly First 3D-Printed Rifle Is Fired on YouTube". Retrieved 2024-10-26.
- ^ "Pilot Hobbies: G22 Grizzly v3 Overview". Retrieved 2024-10-26.
- ^ "Defcad: G22 Grizzly v4 Release". Retrieved 2024-10-26.