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The Model L rifle was developed by CETME, Spain («Centro de Estudios Tecnicos de Materiales Especiales», now Santa Barbara SA) as a modernization of their previous Model 58 and Model B rifles, which are based on the WW2 design for the Stg.45 by Mauser, Germany. The Model B was licensed by Heckler & Koch and turned into their G3 rifle. In the mid-1960s, CETME began work at a smaller-caliber version of the basic rifle, initially called Model E. Development was completed in 1980, when the first prototype of the Model L, chambered for the 5.56 mm cartridge was produced. It was adopted by the Spanish army and rendered obsolete by the adoption of the H&K G36E assault rifle. The Model L is a delayed blowback operated, selective-fire assault rifle which is similar in design to the HK33. It features simple fixed leaf-type sights with apertures for 200 and 400 m, accepts M-16-type magazines. The CETME Model LC is the carbine variant with a folding butt-stock (SS 10, Acc 7, Rcl -2, HO -4 when folded) and a shorter barrel length of 320 mm (instead of 400 mm on the full-size rifle).

SteyrACR ver. 4d(2) 11 11 + 1 600 4 000 4.0 8 24 9 -1/2 2 700€ -5 5.56 mm Synthetic Cased Fléchettes (1.58 mm Darts)

The Advanced Combat Rifle by Steyr-Mannlicher, Austria, was a contestant in the ACR program started by the US army in the early 1990s, which strove for a 100 % hit improvement over the ageing M16. Steyr's ACR uses a fléchette round (literally «small dart»), a concept which is used in large-bore cannons and which was adopted for small arms in the 1960s but found to be inadequate at that time. The platic fléchette cartridge has a nominal caliber of 5.56 mm which totally encloses the fléchette, that is 1.58 mm in diameter, 41 mm long and weighs 0.66 g. The fléchette itself is partly surrounded by the discarding plastic sabot, which helps to accelerate the dart to approximately 1450 m/s (910 m/s at 600 meters). The ACR as basically a bullpup rifle, which is gas-operated and sports a horizontally as well as vertically moving breech block instead of the common linear-moving bolt, and the spent cartridges are forced out of the ejection port, by the next round. Initial stabilization is given to the fléchette by a slow rifling, while the dart is in flight, its fins provide a stable trajectory. The ACR is fully ambidextrous, which is unusual for a bullpup design, as the ejection port is located at the bottom of the rifle. The action is enclosed in a streamlined polymer housing similar to that of the Steyr AUG with an enclosed pistol grip and a large ventilated upper rib. It features a carrying handle that is almost extended to the muzzle, an optical sight can be installed on that handle, fixed sights are built into the handle for quick target acquisition, a fixed power 1.5 x scope is standard. The Steyr ACR accepts 24-round translucent magazines, which are located at the very back of the rifle, due to the complex action. It can only fire single shots and three-round bursts, no fully-automatic mode is available.

The Steyr ACR proved to be a well-designed rifle, delivering good accuracy, armor-piercing capability and ruggedness, but was nonetheless plagued by pre-production flaws like an uncontrollable amount of gas pressure in the chamber. It did not fulfill the given requirements for the test program and was subsequently cancelled, while only a a few dozen prototypes remain.

Weapon Malf.

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