2012年04月04日
MK 19 Grenade Firestorm
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350 RPM Auto • 2,200M Max Range • 15M Blast Radius—Enough said!
Catching a fired grenade in flight is not an overly daunting task for a photographer because of the low muzzle velocity, which yields a high trajectory that is both an advantage and disadvantage. DoD Photo
“Small arm” is a relative term. NATO defines this as any individual or crew-portable direct-fire weapon with a bore diameter less than 50mm, even if capable of defeating light armor and helicopters. In the U.S. military it usually means any weapon that typically doesn’t require a specific job description to employ. One system at the very edge of these strata is the MK 19 Grenade Machine Gun. While GMGs are a more recent entry into the Army small arms inventory, development began in the Navy during the early 1960s. Looking to boost the firepower of riverine crafts and marine infantry in jungle environments, several multi-shot 40mm grenade launchers were tested that fired the low velocity 40×46mm M406 grenade originally developed for the M79. Among these the most notable was the MK 18, a belt-fed and hand-cranked grenade launcher developed by the Hughes Corporation.
Comparing a 5.56 (.223) next to a 40×53mm grenade shows the power difference. Each HE (High Explosive) and HEDP (High Explosive Dual Purpose) is as potent as a hand grenade and the MK 19 throws about 350 each minute!
While these designs where a step in the right direction, they all suffered from short effective ranges due to the low-pressure cartridge used. Originally designed to be shoulder-fired, the M406 High Explosive grenade has an absolute maximum range of about 400 meters. The U.S. Navy looked to boost the range by developing a self-powered fully automatic grenade machine gun around the much higher velocity 40×53mm M384 grenade, a cartridge originally developed for the M75 grenade launcher used on UH-1 and AH-1 helicopters.
071024-A-1950C-127- Sgt. Chad Mohr (left), St. Louis, Mo. watches rounds land on target as Spc. David Hooker (right), Palestine, Ark., fires the MK19 Machine Gun at a known insurgent position Oct. 24 during Operation Rock Avalanche. The “Dragon Platoon” Soldiers of Destined Company, 2nd Battalion, 503rd Infantry (Airborne) were occupying a ridgeline between the Pech and Shuryak Valleys in Kunar Province, Afghanistan.
The first version was dubbed the MK 19 MOD 0 but didn’t prove reliable enough for field use. Product improvements in the MOD 1 performed effectively enough when tested on Navy patrol craft and the design was refined further. In the late 1970s, the design was again overhauled and became the MOD 3. Both the Army and Marine Corps saw the potential in the system for defense, retrograde, patrolling, rear area security and special operations, adopting it for ground use 1983. Saco Defense (now General Dynamics) was contracted to manufacture the weapon and has produced approximately 35,000 MK 19 MOD 3 grenade launchers for all branches of the U.S. armed forces.
By John M. Buol, Jr.
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2012年04月04日
Sentry Gun – Airsoft Version
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It's now a reality, an airsoft sentry gun that will watch the fort for you. This is a demo video of a sentry gun made by Scott Bales of Deep Earth Bunkers using an airsoft gun though you can also mount a real steel weapon on it. It's impressive and responsive enough, though it will still need a human operator to identify friend from foe. Now, if they'll just mount an airsoft minigun on it, then we'll all be set for some difficult bunker assault scenario.
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2012年04月04日
Glock 18C from Tokyo Marui
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The following is another photo review of the much coveted Glock 18C from Tokyo Marui. Based on some reviews that I have read, so far this is the best GBB said company, in terms of power, groupings and effective range. I have one and I just love it.
The box
In the box, the gun sits on a molded styropor. a little disappointing compared to the 1911 series which usually have a bed of cloth with themed camo.
The left and right view
Tokyo Marui markings on the magazine bumper
The usual Glock marking both on the left and side frame and slides. On the left is marked "Tokyo Marui Made in Japan" instead of the usual "MAde in Austria" markings.
Very nice and authentic grips, very easy on the hands.
Metal serial markings which also serves as a safety switch.
Black outer barrel and the standard picatinny rail for light or laser attachments.
Very nice copied ported barrel and slide.
White marked rear and front sight.
Authentic semi and full auto selector lever.
Removal of slide is needed in order to adjust the hopup.
Take down is very simple like the real one.
Comes with the usual bag of bbs, cleaning rod and magazine followers.
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The following is another photo review of the much coveted Glock 18C from Tokyo Marui. Based on some reviews that I have read, so far this is the best GBB said company, in terms of power, groupings and effective range. I have one and I just love it.
The box
In the box, the gun sits on a molded styropor. a little disappointing compared to the 1911 series which usually have a bed of cloth with themed camo.
The left and right view
Tokyo Marui markings on the magazine bumper
The usual Glock marking both on the left and side frame and slides. On the left is marked "Tokyo Marui Made in Japan" instead of the usual "MAde in Austria" markings.
Very nice and authentic grips, very easy on the hands.
Metal serial markings which also serves as a safety switch.
Black outer barrel and the standard picatinny rail for light or laser attachments.
Very nice copied ported barrel and slide.
White marked rear and front sight.
Authentic semi and full auto selector lever.
Removal of slide is needed in order to adjust the hopup.
Take down is very simple like the real one.
Comes with the usual bag of bbs, cleaning rod and magazine followers.
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2012年04月04日
Battlefield Boomsticks
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A roundup of special-purpose 12 gauges in use by the most elite forces.
Benelli M4 Tactical
Italian gun maker Benelli is world-renowned for its tactical shotguns. Models such as the SuperNova Tactical, M2 Tactical, M3 Convertible, and M4 Tactical are in service with the special operations units of Italy, France, Estonia, Macedonia and the United Kingdom, among many others. Benelli’s SuperNova Tactical is a pump-action shotgun that features a lightweight receiver that is noted for its strength. It is available with either rifle sights or adjustable ghost ring sights. The M2 Tactical, like many Benelli semi-automatic shotguns, is inertia driven and uses recoil to operate the action. This reduces many of the problems associated with gas-operated systems, such as the tendency to malfunction in adverse environments and due to burnt residue fouling.
C-MORE Systems M26
One of the newer concepts in the field of combat shotguns is the M26 Modular Accessory Shotgun System (MASS). In service with the U.S. Army, the M26 is a modular firearm that is primarily designed to be attached as an accessory to an M4 Carbine or other assault rifles. When attached to an M4, the M26 can be zeroed to the optical or iron sights of the host weapon. The M26 can also be detached from the host rifle, have an M4-type collapsible buttstock attached and used independently in confined spaces such as vehicles and building interiors. In the standalone role, an optical sight can be installed using an integral Picatinny accessory rail.
Izhmash Counter-Terror KS-K 12
Elite Russian Spetsnaz, or Special Purpose Troops, of the army’s GRU intelligence branch and the FSB’s Alfa Counter Terrorism Unit use a unique combat shotgun based on the Kalashnikov operating system. Known as the KS-K, this military shotgun is produced in Russia by the Izhmash Company. A civilian-legal variant of this shotgun is sold in the U.S. under the Saiga brand name. The KS-K shotgun is similar to the Kalashnikov assault rifle in both layout and operation. One benefit of this: Shooters familiar with the AK family of rifles can be easily cross-trained to use the KS-K. Unlike the rifles it is based on, however, the KS-K is semi-auto only. An AK-74-style side-folding stock is used on the KS-K.
By Christian Shepherd
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