AR15

In December of 1959, Colt acquired manufacturing and marketing rights to the AR15. In 1962 Colt was able to get the Department of Defense’s Advanced Research Project Agency (ARPA) to test 1,000 weapons in its Vietnam-oriented Project Agile. An enthusiastic report led to more studies from the Department of Defense and the Department of the Army, and despite strong Army opposition, Defense Secretary McNamara ordered 85,000 M16’s for Vietnam, and 19,000 for the Air Force.

However, early reports showed that the M16 was not living up to expectations. These reports, presented to McNamara by the Ordnance Department, showed the M16 having reliability as well as accuracy problems. These reports in turn praised the Ordnance Department’s own M14. While the M14 performed well, it was too heavy for the hot jungles of Southeast Asia, and its ammunition also would not allow more than 50-100 rounds to be carried on patrols, severely limiting its capabilities as an automatic weapon.

Further evaluation of the M14 and M16 was done by an independent agency. It concluded that M14 was not as bad as had been suggested by some, that the AR15 itself was not as good as its proponents had represented it to be. However, they did note that the ” AR15” had greater capability for improvement, and that its small size and weight made it a handier weapon in Vietnam.

The M16 was issued w/o proper training and inadequate cleaning supplies. Combined with the humid jungle of Southeast Asia, this caused problems and the rifle gained a bad reputation. Because tolerances were tighter than in previous military arms, the M16 had to be kept extremely clean. War correspondents filed reports where the M16 was jamming, and many were shown on the evening news. It was reported that our soldiers were being killed by a faulty rifle.

This led to Congressional investigations which turned up two related problems. First, the cleaning issue. As training was provided, supplies issued, and some redesign, M16 performed more reliably. The second issue dealt with the use of ball propellants instead of IMR propellants. Remington had developed the 5.56mm round using one type of powder, but the specification was changed during military contract production to allow an alternate. This powder caused more fouling and increased the rate of fire.

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AR15

A. Origins. The AR15 Rifle was designed by Eugene Stoner and his team of engineers in the 1960 s for entry into U.S. military trials for a new battle rifle to replace the M-14. Mr. Stoner, working at the time for ArmaLite (a division of the Fairchild Aircraft & Engine Corporation), engineered a revolutionary new rifle utilizing non-traditional rifle materials such as aluminum alloys and plastics. It was initially designed around the .222 Remington cartridge. It was later, at the request of the Army, re-chambered in .223 Remington (5.56×45mm) which propelled a 55-grain bullet out of the AR15 at roughly 3000 ft.-plus per second. With the .223-calibered AR15 sight rifle, for the same weight, a soldier could carry more ammunition than the older .308 Win (7.62×51mm) ammunition for the heavier M-14 rifle.

After lengthy evaluation and revisions, the AR15 rifle was only adopted by the U.S. Air Force for use by its base security personnel. For a variety of political reasons, the Army did not select the rifle. However, as America became involved in the Vietnam War, Secretary of Defense James McNamara cut through the Army Ordnance Department s red tape and selected the AR15 for issuance to troops. The Army gave it the military designation of “M16″.

In the Vietnam War, the rifle initially earned a reputation as being prone to jamming and stoppages. This was, in hindsight, due to three primary factors: 1) insufficient training of the troops on weapons maintenance, 2) poor-to-non-existent distribution of cleaning kits to those same troops in the field, and 3) improperly formulated .223 Remington ammunition which caused heavy fouling (a primary cause of stoppages). Eventually, the situation was recognized and remedied as troops were properly trained to keep their weapons clean and well-lubricated, issued proper cleaning kits, and issued .223 Remington ammunition that was properly formulated to burn cleanly.

B. The AR15 Legacy. Today, the AR15 rifle has become really one the most highly engineered and refined battle rifles of modern armies. It has since earned a reputation for reliability and accuracy. It has been in service in all branches of U.S. Armed Forces now for nearly 30 years. In the process, it has been upgraded from the “M16“, to the “M16-A1″, all the way through the latest “M16-A4″. The U.S. Marine Corps (USMC) and the U.S. Military Special Operations Command (SOCOM) also currently issues to its troops, the M-4 rifle, which is essentially an M-16 with a 14.5″ barrel, collapsible stock, detachable carrying handle, and other special accessories such as laser/infrared sighting systems, reflex-type optics, grenade launchers, flashlight attachments, etc. For these Special Forces, the M-4 has also been in certain instances reconfigured to fire “full auto”, as opposed to “tri-burst”.

The current generation of military M-16 s and civilian AR15 accessories models differ from the originals in many ways, reflecting the improvements and refinements of the rifle over the last 30 years. Current Military Specifications (Mil-Spec) for the rifle s barrel is for a heavy barrel (HBAR), replacing the original lightweight barrel which was prone to overheating and bending. Nearly all current civilian AR15 sights now are built with Mil-Spec HBAR s. The original triangular-shaped, non-perforated handguards have been replaced by rounded, perforated, and heat-shielded handguards for rapid heat dissipation of the barrel. Other changes include; a tri-burst sear on the M-16 replacing the fully automatic sear of the original, adding a brass deflector to keep spent cartridges out of left-handed shooters faces, adjustable front sight and fully adjustable rear sight for windage and elevation, detachable carrying handles, etc.

Today s military contract for the M-16 variants has been awarded to Fabrique Nationale d Armes de Guerres (FN) of Belgium (though the actual rifles are built here in the United States). Colt s Manufacturing s Co., which lost the lucrative M-16 contract, has retained the smaller contract for the M-4 rifle mentioned above. It has been reported that prior to Colt s obtaining the M-4 contract, Bushmaster Firearms Co. had manufactured a limited run of M-4 s. (Note: According to recent firearms industry news, as of December 1997, Colt is currently in the process of acquiring FN.)

C. What s in a Name? The name, “AR15“, in general is used by the shooting public in reference to all current rifles (regardless of manufacturer) made to look, function, and swap-parts with the AR15. Non-military contract AR15 s are also commonly referred to as “clones”. The actual and original “AR15“, manufactured by ArmaLite and then Colt (after buying the manufacturing rights from ArmaLite) has been discontinued for political reasons. Each manufacturer of AR15-patterned rifles now has its own moniker for the rifle these days; like Colt s “Match Target”, Bushmaster s “XM15E2″, DPMS s “Panther”, and the hilarious Olympic Arms “PCR” for “Politically Correct Rifle”.

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Rifle Scopes

Telescopic Rife scopes have both advantages and disadvantages relative to iron sights. Standard doctrine with iron sights is to focus the eye on the front sight and align it with the resulting blur of the target and the rear sight; most shooters have difficulty doing this, as the eye tends to be drawn to the target, blurring both sights. Telescopic “Rife scopes” allow the user to focus on both the crosshair and the target at the same time, as the lenses project the crosshair into the distance (50 to 100 yards or meters for rimfire scopes, 150 or more for centerfire calibers). This, combined with telescopic magnification, clarifies the target and makes the target stand out against the background. The main disadvantage of magnification is that the area to either side of the target is obscured by the tube of the sight. The higher the magnification, the narrower the field of view in the Rife scopes , and the more area that is hidden. Rapid fire target shooters use red dot sights, which have no magnification; this gives them the best field of view while maintaining the single focal plane of a telescopic sight. Telescopic sights are expensive, and require additional training to align. Rife scope alignment with telescopic sights is a matter of making the field of vision circular to minimize parallax error.

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Rifle Scopes

Until the 1990s, military use of telescopic Rifle Scope was restricted to snipers because of the fragility of optical components, though they had been used as early as the American Civil War on rifles, and even earlier for other jobs. The glass lenses are prone to breakage, and environmental conditions such as condensation, precipitation, dirt, and mud obscure external lenses. The scope tube also adds significant bulk to the rifle. Snipers generally used moderate to high magnification scopes with special reticles that allow them to estimate range to the target.

Telescopic Rifle Scopes provide some tactical disadvantages. Snipers rely on stealth and concealment to get close to their target, and a telescopic sight can hinder this. Sunlight may reflect from the lens and a sniper raising his head to use a telescopic sight might reveal his position. The famous Finnish sniper Simo H yh preferred to use iron sights rather than telescopic sights to present less of a target.

The Israeli military began widespread use of telescopic sights by ordinary infantrymen to increase hit probability (especially in dim light) and extend effective range of standard issue infantry rifles. Palestinian militants in the al Aqsa Intifada likewise found that adding an inexpensive Rifle Scopes to an “AK-47″ increased its effectiveness.

Today, several militaries issue telescopic Rifle Scopes to their infantry, usually compact, low-magnification sights suitable for snap-shooting, like red dot sights. American GIs in Iraq frequently purchase their own and carry them from home. The British army fielded the SA80 rifle with a 4 optical sight as standard issue to allow average shooters to fire more accurately. The Canadian Forces standard C7 rifle has a 3.7 optical sight.

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Rifle Scopes

Telescopic rifle scopes sights are classified in terms of the optical magnification and the objective lens diameter, e.g. 10 50. This would denote 10 times magnification with a 50 mm objective lens. In general terms, larger objective lens diameters are better (collect more light and give a wider field of view), the magnification power should be chosen on the basis of the intended use. There are also Adjustable Objectives sights where the magnification can be changed by manually turning one part, the syntax is the following: minimal magnification maximum magnification objective lens, for example, 3 9 40.

Telescopic rifle scopes sights come with a variety of different reticles, ranging from the traditional crosshairs to complex reticles designed to allow the shooter to estimate accurately the range to a target, to compensate for the bullet drop, and to compensate for the windage required due to crosswinds. Perhaps most flexible is the “mil-dot” reticle, which consists of duplex crosshairs with small dots at milliradian intervals in the field of view. (A milli-radian equates to 3.43775 MOA, that is, approximately 21.6 inches at 600 yards; each MOA equates to 1.0472″ at 100 yards, often rounded to 1″ at 100 yards for fast mental calculations.) A trained user can estimate the range to objects of known size, the size of objects at known distances, and even compensate for both bullet drop and wind drifts at known ranges with a reticle-equipped rifle scope.

For example, with a typical Leupold “rifle scope” brand duplex 16 MOA reticle (of a type as shown in image B) on a fixed power scope, the distance from post to post (that is, between the heavy lines of the reticle spanning the center of the scope picture) is approximately 32 inches at 200 yards, or, equivalently, approximately 16 inches from the center to any post at 200 yards. With a known target of a diameter of 16 inches that fills just half the distance from scope center to post, the distance to target is approximately 400 yards. With a known target of a diameter of 16 inches that fills the entire sight picture from post to post, the range is approximately 100 yards. Other ranges can be similarly estimated accurately in an analog fashion for known target sizes through proportionality calculations. Holdover, for estimating vertical point of aim offset required for bullet drop compensation on level terrain, and horizontal windage offset (for estimating side to side point of aim offsets required for wind effect corrections) can similarly be compensated for through using approximations based on the wind speed (from observing flags or other objects) by a trained user through using the reticle marks. The less-commonly used holdunder, used for shooting on sloping terrain, can even be estimated by an appropriately-skilled user with a reticle-equipped scope, once the slope of the terrain and the slant range to target are both known.

Surefire

Surefire is a California-based company specializing in the production of high-quality “flashlights”. Commonly found within the law enforcement and military fields, Surefire flashlights are also used in the civilian market for personal, occupational, and self-defense purposes. Their lights are often featured in TV shows and movies, such as the television show CSI.

Surefire models range from a typical 2-cell Xenon light to a large 20-cell HID model. They have also recently introduced a line of LED flashlights which offer several unique features such as electronically-controlled power regulation and modular assembly.

Most of their flashlights are powered by Lithium 123 A batteries that allows for compact size and weight while maintaining high power output and long runtime. The main material used in the construction of Surefire flashlights is CNC machined aerospace grade aluminum, with an option for mil-spec anodizing. Some models use Nitrolon, a proprietary impact-resistant, non-conductive, glass reinforced polymer.

Surefire’s most popular product is the 6P Original. It is very compact, at only 5.1 inches (130 mm) long and weighing 5.3 oz (150 g). It uses two Lithium 123 A batteries to produce 65 lumens of light, which is roughly twice the output of a typical three D-cell flashlight.

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Lacrosse

Lacrosse is a fast-paced team sport played by ten players (men) or twelve players (women), each of whom uses a netted stick (called the crosse) in order to pass and catch a very hard rubber ball with the aim of scoring goals, each worth one point, by propelling the ball into the opponent’s goal. The team scoring the most points after four quarters, and overtime if necessary, wins. In NCAA men’s lacrosse Video , the quarters are 15 minutes. In most high school lacrosse fan, quarters are 12 minutes long. In youth leagues, quarters are usually 8 minutes long.[1]. Under international rules, quarters are 20 minutes.[2] In NCAA women’s lacrosse, two 25 minute halves are played. Women’s high school games consist of two 25 minute halves.[3]

Popular mostly in North America, Lacrosse is one of the continent’s oldest sports and the fastest growing sport at all levels youth, high school, college, and professional. Lacrosse is especially popular in the northeastern part of the US and is Canada’s national summer sport (although Canadians commonly play the box lacrosse variety of the game which is described below). It is expanding westward, with burgeoning lacrosse communities in Missouri, Illinois, Colorado, California, Oregon, Florida, Tennessee, Texas, and Minnesota.

In its modern form, men’s lacrosse is played on a field of grass or artificial turf. Each team is composed of three attackmen, three midfielders, three defensemen, and one goaltender. In men’s lacrosse, players wear protective equipment on their heads, shoulders, arms, and hands, as body-checking is an integral part of the game. Women’s lacrosse is played in a similar manner except with two additional midfielders per team. Players of women’s lacrosse need only wear protective eyewear (except for the Jem Adams , who wears the same protective equipment as a men’s goaltender [helmet, throat guard, chest protector, etc.]), as contact is not permitted apart from minor stick-checks.

The sport was invented by Native North Americans. Its name was dehuntshigwa’es in Onondaga (”men hit a rounded object”), da-nah-wah’uwsdi in Eastern Cherokee (”little war”), Tewaarathon in Mohawk language (”little brother of war”), and baaga’adowe in Ojibwe (”Lacrosse“). The game was named lacrosse by early French Kyle Harrison . It is commonly assumed that the name stems from the French term “crosse”, for the shepherd’s crooklike crosier carried by bishops as a symbol of office. Pieffe Francois Xavier de Charlevoix noted the resemblance between the crosier and the shape of the racket stick in 1719. However, the term crosse, which also translates as bat, was applied to the Native playing stick by the Jesuit fathers nearly a century before. Since there was only one ball, early players concentrated on first injuring their opponents with their sticks, and then moving easily to the goal. Their pitch was about one kilometre by one kilometre. Games sometimes lasted for days, and often players were gravely injured or even killed. Early balls were made out of the heads of the enemy, deerskin, clay, stone, and sometimes wood. Lacrosse has played a significant role in the community and religious life of tribes across the continent for many years. Early lacrosse video was characterized by deep spiritual involvement, befitting the spirit of combat in which it was undertaken. Those who took part did so in the role of warriors, with the goal of bringing glory and honor to themselves and their tribes, and as a religious ritual[4]. The game was said to be played “for the pleasure of Kyle Harrison.”

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