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The AR Lower V5 is a 3D printed lower receiver for the AR-15 rifle. [1] It was created in March 2013 Defense Distributed printed using the Stratasys Dimension SST 3-D printer [1] [2] using the fused deposition modeling (FDM) method. [2] The receiver was able to handle enough stress to fire more than 600 rounds. [1]
A stripped lower receiver, one that is lacking the additional parts included in a completed lower receiver, is the only part of an AR-15–style rifle that needs to be transferred through a federally licensed firearms dealer under United States federal law.
Thus, in the case of a firearm that has multiple receiver parts, such as the AR-15, which has an upper and a lower receiver, the legally controlled part is the one that is serialized. [ 5 ] For the AR-15 rifle, the lower receiver assembly is legally considered the actual receiver, [ 5 ] although it is functionally a chassis that also houses the ...
ArmaLite AR-15 with the charging handle located on top of the upper receiver, protected within the carrying handle and a 25-round magazine. 1973 Colt AR-15 SP1 rifle with "slab side" lower receiver (lacking raised boss around magazine release button) and original Colt 20-round magazine.
The AR-15 uses an L-type flip, aperture rear sight and it is adjustable with two settings, 0 to 300 meters and 300 to 400 meters. [16] The front sight is a post adjustable for elevation. The rear sight can be adjusted for windage. The sights can be adjusted with a bullet tip or pointed tool. The AR-15 can also mount a scope on the carrying handle.
The DEFCAD Charon is an open source [1] 3D-printable AR-15 lower receiver project that was partially inspired by the Fabrique Nationale P90. It began as a design exercise by a DEFCAD user to explore FDM additive manufacturing technology as a means of integrating the P90's ergonomics into a stock for the AR-15, resulting in the WarFairy P-15 ...
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The AR-10 is slightly larger and heavier than the AR-15. It was originally designed to chamber the military 7.62x51 NATO cartridge (also .308), which has a COAL of 2.800" (71.12mm) 45 Raptor , uses the standard 7.62 NATO case, cut to a length of 1.800" from 2.015", resulting in a straight-wall cartridge, neck is sized to 0.452".