2012年03月13日
Battle Reflexes
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Split-second precision! From CQB to 200-plus yards, today’s new holographic and red dot sights have the enemy covered!
Experiments and tortuous use in varied shooting competition did much to enhance the usability and reliability of red dot sights on today’s urban battlefields.
Since the advent of rifled firearms, manufacturers and gunsmiths have sought ways for the firearm user to more efficiently exploit the equipment’s mechanical accuracy potential. An overview of issue arms through the smoothbore days reveals a near absence of sights. Muskets of the day were sometimes devoid of aiming aids. Sights on others were little more than simple shotgun-type beads for rudimentary pointing. What at first glance appears to be a front sight on some muskets was actually a lug for bayonet mounting.
This changed when rifles became common issue. Common infantry long guns could now be expected to deliver reliable hits on man-sized targets at a quarter mile and beyond, a nearly tenfold increase in effective range. Militaries established “schools of musketry” to teach troops how to exploit this new capability. Training and qualification courses took shooters out to 600 yards and beyond. Influenced by civilian competition shooters, forward-thinking high echelon leaders such as General Philip Sheridan began encouraging competitive shooting programs to find the best talent among the ranks. Competition shooting promoters William Church and George Wingate would publish material teaching their methods learned at matches, which eventually evolved into the U.S. Army’s first marksmanship manual. The formats used eventually became the National Match Course created for the M1873 Trapdoor Springfield, the issued rifle of the day.
Military and law enforcement today are commonly using red dot technology born in competition, as it provides quick aiming in most lighting conditions and can be adapted to night vision use.
Tactics change partially in response to available technology. Tripod-mounted machine guns, organic to the unit, could better apply mass fires at distance, as a single team could do the work of dozens of troops armed with bolt-actions. Better still, fire from a battery miles away could provide effective coverage without revealing the location of a maneuvering element with telltale small-arms fire. Reports from the field through World War II and Korea revealed that despite the potential ballistic capability, most troops simply did not, or could not, engage beyond 300 yards. What’s more, the limitations of iron sights were beginning to be realized.
In addition to the military-issue M68, Aimpoint markets models to hunters in the familiar 30mm tube diameter.
By John M. Buol, Jr., Images by Sean Utley
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2012年03月13日
Stoner’s Original Warhorse
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ArmaLite’s AR-10, as the match-grade A4 BSNF, is the latest improvement on Gene Stoner’s first battle rifle!
The AR-10A4’s National Match trigger and barrel make it a long-range tack-driving hammer when coupled with a Leupold Mark 4 3.5×10 LR/T M3 scope and an Advanced Armament Cyclone suppressor.
Most American “black rifle” enthusiasts be¬¬came such by exposure to the AR-15 or one of its civilian or military variants. Many shooters, early in their exposure to the AR-10, assume that the AR-10 is just a beefed-up AR-15 that can handle the 7.62×51mm NATO/.308 Winchester cartridge—when, in truth, it came first. But, just recently the AR-10 has come into its own.
ArmaLite has announced a limited run of AR-10A4s with two special upgrades. The Illinois-based company switched to a match-grade barrel and a National Match trigger to produce a heavy hitter with target-grade accuracy. This AR was a cooperative effort with RSR Group, one of the top firearms distributors in the United States.
Modern variants of the M14 still see service in combat with special forces units in Iraq and Afghanistan.
Birth of the AR-10
The ArmaLite AR-10A4 BSNF (factory designation for AR-10A4 in black, with forward assist and National Match trigger) is destined to become a rarity due to its limited run, which isn’t anything new to those familiar with early AR-10 history. Hamstrung by a poor management decision in 1957, the AR-10 failed against the T44, the predecessor to the M14, in becoming the U.S. service rifle. To make matters worse, ArmaLite Fairchild sold off Stoner’s patent for the AR-15 to Colt’s Manufacturing for $75,000 and a small royalty in 1959. Export complications in Holland kept Artillerie Inrichtigen, to whom ArmaLite Fairchild had sold manufacturing rights for the AR-10, to building and shipping fewer than 10,000 AR-10 rifles.
What few rifles were shipped found service with Italy’s version of the Navy SEALs, as well as the Portugese and Sudanese military. But the story does not begin there.
By Jay Langston
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2012年03月13日
Battle Arms Development - Ambidextrous Safety Selector
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After more than a year of development, testing and refinement, the Battle Arms Development - Ambidextrous Safety Selector (or 'BAD-ASS') has finally been released, which is very exciting for me as a left-handed user of the AR-15. The BAD-ASS is user-configurable and addresses the issue of lever interference with the trigger hand when rotating the lever from 'safe' to 'fire'. The BAD-ASS is designed for both left and right handed shooters who believe that ambidextrous controls on a weapon are an advantage, and allow the user to operate the weapon as efficiently as possible no matter which side they're firing from.
The BAD-ASS package comes with the selector axis and three detachable levers (standard, thin and short), which are installed using torx mounting screws. A torx wrench is included in the package. The standard lever is about the same length and thickness as the standard USGI lever. It just has a different profile. To maximize 'shelf' area for the thumb to engage positively, the cross section is more rectangular than rounded/pyramidal. The thin lever is the same length as the standard lever, but half the thickness of the USGI lever. The short lever is the same thickness, but shorter than the USGI lever.
The levers have broad, angled serrations on their surface to provide a sure and positive purchase for the thumb, and also the 'crook' of the finger (when it is used to flip the lever from 'fire' to 'safe'). I find that with an ambi safety, I flip the lever from 'safe' to 'fire' with the thumb, but use the crook of my trigger finger plus the thumb to flip it back to 'safe'. There is a groove machined into the pocket of the lever, as well as the round part, which can be filled with paint for a more visible identification of lever position. I must mention that the initial inspiration for the lever shape came from a one-off custom ambi safety that my friend Shin Tanaka made for me, that I've been using for the past few years. BAD and I came up with and tested different shapes/profiles, but in the end, arrived with a profile similar to that of the Shin lever, through natural evolution and progression of the design based on testing and evaluation. A great amount of thought, time and effort went into the design of the levers from all involved.
From militarymorons
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2012年03月13日
Skat GM-100 Glock Clone in 9mm and .22LR
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Two weeks ago there was a blog about Russian firm Skat who are manufacturing a modernized SVD. The company also manufactures a Glock clone called the GM-100 Sports Pistol.
Visually, the pistol's frame is almost an identical copy of the 3rd-generation Glock 17 frame. The slide has slightly different serrations but other than than that, and different markings, it looks the same as the Glock slide. The GM-100 is available with a black or stainless frame and with high-contrast sights or fiber optic sights.
Skat is also producing, or looking at producing, a Glock 26 clone chambered in .22LR. The pistol pictured below appears to be a prototype.
In 2010 Glock has successfully sued Austrian Sporting Arms and ISSC in the United States for trade dress infringement. If Skat tries selling these pistols in any jurisdiction that recognizes trade dress infringement, they will almost certainly find themselves in court.
The firearmblog
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