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The Z-M LR-300 is an American select-fire assault rifle designed by gunsmith Allan Zitta and manufactured by Z-M Weapons. The model name LR-300 stands for Light Rifle and 300 is for 300 meters, which is regarded by the manufacturer as the effective range of the rifle with a standard 55 gr (3.6 g) FMJ bullet.
Conversions for rifles and carbines of larger caliber, such as the AK-47 or Thompson submachine gun include a rifled insert barrel extending beyond the length of the chamber. [9] [10] One exception to the use of a special lightweight bolt was the Colt Service Ace, offered as a complete pistol or as a conversion kit for the M1911.
A bullpup conversion of the AR-15 was previously considered but the buffer tube in stock prevented the idea from reaching fruition. [ 11 ] Technically, in the mid-1970s, the 4.85×49mm round was seen as superior to the then existing version of 5.56mm M193 round in use by the US (for the M16/M16A1 ) and by other forces.
The 2014 NRA National Championship equipment survey lists the .260 Remington as most popular caliber for both the high power rifle and high power hunting rifle competition. [ 11 ] The .260 Remington is effective on antelope, sheep, goat, or caribou, while its performance is similar to the 6.5×55mm, which is widely used on moose in Sweden and ...
The Canadian company Colt Canada (formerly Diemaco) licensed production of a rifle (Colt Model 715) and carbine (Colt Model 725), but later went on to produce an entire line of AR-15/M16 pattern weapons developed independently. In May 2005, Colt's Manufacturing Company acquired Diemaco, and the name was changed to Colt Canada.
This type of buffer cushions the battering force of repeated metal on metal impact, reducing wear on parts and lengthening the service life of the firearm. [4] Reduction of perceived recoil discomfort is an immediate added benefit of this type of recoil buffer. [4] Some pneumatic recoil buffers used in firearms are fast, low-power gas springs ...
Later again the charge was exploded by paper tubes (sometimes called Dutch tubes) filled with powder and placed in the vent and ignited by a port-fire. Friction primers (sometimes called friction tubes ) were used in the later black powder era, while in the latest patterns percussion or electric tubes are employed.
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