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  2. Smith & Wesson M&P - Wikipedia

    en.wikipedia.org/wiki/Smith_&_Wesson_M&P

    Smith & Wesson offers a 4.0 in (101.6 mm) barrel compact model and a larger 4.6 in (116.8 mm) barrel model. Both models with have a 15-round magazine capacity and are built on the M&P45 M2.0 frame. The M&P M2.0 10mm Auto features a new M2.0 flat face trigger and comes with an optics ready slide from the factory.

  3. XM17 Modular Handgun System competition - Wikipedia

    en.wikipedia.org/wiki/XM17_Modular_Handgun...

    : Smith & Wesson M&P M2.0; in co-operation with General Dynamics Ordnance and Tactical Systems. [28]: STI and Detonics Defense STX. [29] Sturm, Ruger & Co. designed a pistol series, the Ruger American Pistol, based on the specifications of the MHS, but ultimately declined to formally submit any variant of it for consideration.

  4. FN 509 - Wikipedia

    en.wikipedia.org/wiki/FN_509

    The FN 509 is a polymer frame striker-fired semi-automatic pistol manufactured by FN America, a division of FN Herstal.It is chambered in 9×19mm Parabellum featuring double-action operation and a Picatinny rail located forward of the trigger guard.

  5. CAR-15 - Wikipedia

    en.wikipedia.org/wiki/CAR-15

    Due to the shortened barrel with the gas port intersecting the barrel bore near the muzzle, the gas port diameter was opened up to match the internal diameter of the gas tube at 0.110 inches. [ 1 ] A second prototype used a custom profile 16-inch (410 mm) barrel with the gas port and front sight base/gas block moved back approximately 2.5 ...

  6. Numerical aperture - Wikipedia

    en.wikipedia.org/wiki/Numerical_aperture

    The exact definition of the term varies slightly between different areas of optics. Numerical aperture is commonly used in microscopy to describe the acceptance cone of an objective (and hence its light-gathering ability and resolution ), and in fiber optics , in which it describes the range of angles within which light that is incident on the ...

  7. Abbrev. [1]Meaning [1] Latin (or Neo-Latin) origin [1]; a.c. before meals: ante cibum a.d., ad, AD right ear auris dextra a.m., am, AM morning: ante meridiem: nocte ...

  8. Zernike polynomials - Wikipedia

    en.wikipedia.org/wiki/Zernike_polynomials

    Rewriting the ratios of factorials in the radial part as products of binomials shows that the coefficients are integer numbers: = = () ().A notation as terminating Gaussian hypergeometric functions is useful to reveal recurrences, to demonstrate that they are special cases of Jacobi polynomials, to write down the differential equations, etc.:

  9. Panther tank - Wikipedia

    en.wikipedia.org/wiki/Panther_tank

    This system allowed for very precise control of powered traverse, a light touch on the pedal resulting in a minimum traverse speed of 0.1 deg/sec (360 degrees in 60 min), unlike in most other tanks of the time (e.g. US M4 Sherman or Soviet T-34) this allowed for fine laying of the gun without the gunner needing to use his traverse handwheel.