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This is a by-product of the design, where the carry handle serves to protect the charging handle. [59] The AR-15 rifle has a 500 mm (19.75 inches) sight radius. 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. The front sight is a post adjustable for elevation.
The AR-15 is nominally chambered in .223 Remington or 5.56×45mm NATO, with the .223 Wylde chamber allowing for the safe chambering of both, but many variants have been produced in different calibers such as .22 LR (sometimes referred to as an AR-22 [59]), 7.62×39mm, 9×19mm Parabellum, [60] 6.5mm Grendel, and shotgun calibers. [61]
Bushmaster Dissipator Model XM-15 rifle with aftermarket handguards The Bushmaster XM-15 used by the D.C. snipers during their attacks in October 2002. The Bushmaster XM-15 series (or XM15 [3]) is a line of AR-15 style semi-automatic rifles and carbines manufactured by Bushmaster Firearms International, LLC. [2]
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.
An alternative pre-M16A2 "Low Light Level Sight System", includes a front sight post with a weak light source provided by tritium radioluminescence in an embedded small glass vial and a two aperture rear sight consisting of a 2 mm (0.079 in) diameter aperture marked 'L' intended for normal use out to 460 m (503 yd) and a 7 mm (0.276 in ...
The rear sight can be zeroed for windage in 3.8 cm or 0.38 mrad increments at 100 m, when used with a 367 mm (14.45 in) carbine length sight radius. Elevation can be zeroed in 4.7 cm or 0.47 mrad increments at 100 m. Once the iron sight line is zeroed, the front sight post and rear sight should not be moved. [3] [4]
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AN/PVS-17A Mini- Night Vision Sight; AN/PSQ-18A M203 Day/Night Sight; Carrying/storage case for kit accessories; Part of the SOPMOD Block I (but not always issued with kits): Gas-deflecting charging handles (presumably the PRI M84 Gas Buster Charging Handle with Military Big Latch) Extraction Parts Set #2; Redi-Mag