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Every rhombus is a kite, and any quadrilateral that is both a kite and parallelogram is a rhombus. A rhombus is a tangential quadrilateral. [10] That is, it has an inscribed circle that is tangent to all four sides. A rhombus. Each angle marked with a black dot is a right angle.
Because they were being supplied many non-standard rails from various companies, the regular ROK Army standardized the MIL-STD-1913 rail in 2013 for the PVS-11K red dot sight, which on the K2 is only a short rail on the upper receiver, since it is made with an optics mount on the receiver to attach it and regular troops have less of a need for ...
Vertu Corporation, d/b/a C-MORE Systems, [1] is an American manufacturer of firearms and firearm accessories. Vertu was established in Manassas, Virginia [2] in 1993 and the C-MORE Competition name was established in 1999. [3]
A C79 Optical Sight. The C79 optical sight (SpecterOS3.4x) is a telescopic sight manufactured by Elcan. A variant, the M145 Machine Gun Optic is in use by the US military. It is 3.4×28, meaning 3.4x magnification, and a 28mm diameter objective lens. A tritium illuminated reticle provides for normal and low-light conditions sighting. [1]
The first ACOG model, known as the TA01, was released in 1987. [3] [4] An example was tested on the Stoner 93 in the early 1990s by the Royal Thai Armed Forces. [5]In 1995, United States Special Operations Command selected the 4×32 TA01 as the official scope for the M4 carbine and purchased 12,000 units from Trijicon. [6]
The lozenge shape is often used in parquetry (with acute angles that are 360°/n with n being an integer higher than 4, because they can be used to form a set of tiles of the same shape and size, reusable to cover the plane in various geometric patterns as the result of a tiling process called tessellation in mathematics) and as decoration on ...
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