Engineering & Technical Division

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Germany’s armed forces adopt HK’s new 5.56mm MG4 lightweight squad auto!




German gun maker Heckler & Koch (HK) is well known for breaking molds. The engineers in Oberndorf are not afraid to blaze new trails with guns like the G36 assault rifle with its polymer construction and integral optics. Note I said “optics,” plural: The G36A1 sports both a red-dot sight and a 4X scope stacked on top each other in a sort of figure 8.

When it came time to upgrade the army’s squad machinegun, the Bundeswehr naturally turned to HK to develop a weapon. Yes, the Germans could have bought M249 SAWs from FN in neighboring Belgium, but that’s not how they operate in Europe’s foremost manufacturing country. The Bundeswehr wanted a German gun. I can’t blame them at all. In a quick digression, I note with alarm that America’s military cares not a whit about sustaining our own domestic small-arms development capability.

We bought Beretta pistols from Italy. We awarded FN the contract to develop the SCAR. Glock pistols were recently bought by the hundreds of thousands to give to Iraqi cops. I would like to see our military try a little “buy at home” for a change, like the Germans do.



And so HK was tasked with developing a SAW-like weapon: a belt-fed 5.56mm light machinegun that can be adapted for an assault mode as well as a fixed position mode (i.e., tripod mounted). The result was the MG43 which first appeared in 2001 and was later type-classified and adopted by the Budeswehr as the MG4. By 2007, the MG4 had replaced the previous MG3, a 7.62mm machinegun, on vehicles and for ground troops.

The MG4 is a definite departure for HK as it’s a conventional gas-operated, rotary cam design whereas previous German machineguns have relied on the distinctive Vorgrimler-designed roller-delayed blowback action.

Posted by Cameron Hopkins, Images by Ichiro Nagata




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Precision performance for the LE Designated Marksman with devastating punch!



Remington 40-XS in .338 Lapua bridges the gap between .308 and .50 BMG in a state of the art bolt action rifle that delivers the goods in terms of both accuracy and terminal ballistics.


THE .338 Lapua Mag is a precision tactical cartridge whose time has come. Originally developed in 1983 at the request of the U.S. Navy, the .338 uses a necked down .416 Rigby case and in its initial configuration launched a 250-grain bullet at nearly 3,000 feet per second (fps) with a muzzle energy of over 4,800 foot pounds of energy (fpe). Research Armament produced a prototype rifle and ammunition that were tested by the Navy, but the cartridge never was put into production in the United States. Lapua and Norma finished development of the .338 and began manufacturing the cartridge under the Lapua name. Besides Lapua, Black Hills also loads both 250- and 300-grain cartridges. The latter bullet leaves the muzzle at 2,800 fps with a prodigious 5,223 fpe. To put this into perspective, a 168-grain .308 match cartridge has a muzzle velocity of only about 2,600 fps and 2,180 fpe. The .308’s ballistics pale in comparison to the .338 Lapua, although most .338 rifles are only marginally heavier than precision tactical rifles chambered for the .308.



When raised up, the McMillan A5’s adjustable cheekpiece is designed not to conflict with the “bolt throw” of the host rifle.


The Remington Model 40-XS, for example, is only slightly larger and heavier than similar rifles in smaller calibers, weighing in at 16 pounds — complete with scope and bipod. The test rifle uses Remington’s Model 40-XS action in a McMillan A5 stock. Naturally, a large cartridge like the .338 will necessarily deliver more felt recoil than lesser cartridges, but this can be offset by the use of muzzle brakes. The Remington muzzle brake reduces felt recoil to approximately that of a .308, although muzzle blast alongside the rifle is significant. The spotter on a precision tactical team using a Remington 40-XS .338 Lapua Mag should position himself slightly to the rear of the shooter’s shoulder to avoid having gases and dust blown into his face. As the .338 Lapua Mag became accepted by a number of the world’s military forces as replacements for, or supplements to bridge the gap between the .308 and .50 BMG, it was only a matter of time before law enforcement began to consider it. The .338 gives the precision tactical marksman a huge range advantage over any .308 caliber rifle, while adding little to the weight burden that every rifleman must contend with. As mentioned, the test rifle weighs only 16 pounds (fully loaded) and I’ve tested .308 caliber precision tactical rifles that weigh about the same. When compared to .50 BMG caliber rifles, the Remington 40-XS weighs nearly 10 pounds less than the lightest weight .50 BMG rifle I’ve ever tested. Most .50 BMG rifles, like the widely used Barrett M82, weigh over 30 pounds.



The aggressively designed muzzle brake of the 40-XS helped tame the recoil of the .338 Lapua Mag chambering down to manageable .308 levels.


By Tactical-Life.com, Images by Doug Richardson



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The Beretta M93R electric pistol from Tokyo Marui.




























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GET INTO the MOST portable, realistic and transformable shooting house.


Members of a U.S. Air Force tactical team enter from the stairwell.


As a S.W.A.T. team member and police trainer, I can attest that finding new and realistic training environments presents a dilemma. Typically, officers are relegated to training in only a handful of structures, day in and day out. Before long, team members can’t help but memorize the floor plans of these structures. Training value is diminished since officers are no longer required to read the layout of the structure as they would during an actual operation.

Thanks to UXB International, Inc., providing realistic training to law enforcement and military personnel just got a whole lot easier. According to its creator, Mike Warminsky, the Reconfigurable Armored Tactical Personnel and Collective (RATPAC) training system is the result of a blue-ribbon panel of Spec Ops and LE professionals tasked with developing a “train as you fight” environment. As such, RATPAC was designed to be the ultimate training ground for both the War on Terror and the war on drugs.

Tactical Weapons recently attended an interactive demonstration showcasing RATPAC. The event was hosted in conjunction with Awareness Protective Consultants, CUBIC Corporation, SMH International, and the U.S. Army. This free train-the-trainer event, held in Orlando, Florida, focused on reaping the benefits of the RATPAC structure as well as incorporating sound tactics, essential for real-word mission success.

By Richard Nance




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