The FAL rifles of the DSA company are equipped with "Bajie" barrels of different lengths. All barrels are subjected to a cryogenic secondary stress relief treatment, and all have 11 inner chamfers.

The barrels are all made of 4140 carbon steel or 416 stainless steel, hand-polished, hand-drawn rifling. The barrel machined with this method is more accurate than the precision forged one.

There are two kinds of winding of rifling: l:lO and 1:1l. The muzzle brake is also machined from a single piece of metal. The lower casing is made of 7075T6 aviation aluminum alloy solid material processed by computer numerical control machine tools.

The parts of the gun 85 were all made in the United States. There are also about 6 parts produced by the Austrian company Steyr, but they are fully compliant with US military standards.

The surface of the aluminum alloy parts has been anodized and hardened, while the surface of the steel parts has been phosphated in accordance with the standards of the US military.

On the whole, the gun was structurally well laid out. Beautiful appearance.

The roof of the gun was equipped with a heavy SA58 sight rail, which was made of 6061T6 aluminum alloy with walls up to 9 mm thick. It's noticeably thicker than anything else I've seen. The guide rail is a Picatinny type that meets the MIL STD1913 standard of the US military standard. It is possible to easily install sighting devices of various NATO standards.

The front sight is a standard column-type front sight, protected by a protective frame, and adjustable in height. The rear sight is a hole-type shutter, which has a range of 200~700 meters and can also be corrected for wind deviation. Since the barrel is relatively short, the front sight is also shortened accordingly. Despite its short crosshair, it's easy to use.

Another feature of the gun is the gas conditioning system. When different types of bullets are used or the chamber is dirty, as well as in hot climates, this device allows the shooter to adjust the flow of air conduct, ensuring that the automatic cycle of shooting is carried out reliably. The shooter can also turn the gas valve completely closed, turning the gun into a non-automatic rifle operated entirely by hand.

When firing, an EL optical sight was installed on the gun. The sight is the most widely used military optical sight in the world, with a magnification of 3.5x. A crosshair with a very large field of view and tritium illumination for quick target capture.

On the firing table, the FAL short-barreled rifle showed very good shooting accuracy. The projectiles were spread out in a circular shape and were very consistent, and there were no abnormalities even if the barrel was hot.

The best results of the game are shot with bullets: 5 rounds. The average projectile of PMC shells is spread within 38 mm; The average dispersion of Sellier & Bellot tournament shells is 41 mm: the average dispersion of "Montenegrin" shells is 51 mm; The dispersion of BPS, pointed-nosed bullets and stern-shaped all-metal armor shells is between 5L and 76 mm.

The FAL 5.56mm rifle uses many of the components of the FNFAL7.62mm rifle, but with corresponding improvements to the barrel, bolt mechanism, magazine, and parts related to the cartridge.

The gun fires Belgian SS109 5.56mm rounds.

The performance data of the FAL5.56mm rifle, which is the SLR repeating sniper rifle: caliber 556mm, infantry type 965ms, paratrooper type 950ms, gauge range 250m, automatic gas conduction type, locking method bolt deflection type, firing mode single shot, burst shot.

Ammunition feeding method magazine, 30 rounds of ammunition, full gun length: infantry type butt open 1090mm, FNFAL rifle founder FN49 semi-automatic rifle butt folded 1020mm; Paratrooper type: butt folded 770mm, infantry type 533mm.

Paratrooper type 458mm, rifling entanglement 178mm, full gun mass without magazine: infantry type 4325kg, paratrooper type 42kg, aiming device: front sight flake, according to the door hole type, with ammunition type SS109 type 55645mm.

He Qi looked at the SLR repeating sniper rifle on the pony's mobile phone, shook his head and said to him: "Don't, you can take it, it's enough for me to have the current few guns, I don't need anything else, but you, the part-time job with less equipment now is pitiful." ”

Pony said, "It's okay, let's walk a few more buildings and we'll have everything." ”

He Qi nodded in agreement, and then led the three people to run several buildings again, this time he didn't encounter the enemy again, as if there were only seven of them in the entire map, but when he looked at the eighty-five players, He Qi knew that there was still a long way to go to win this game.

He Qi closed the magnification mirror, at this time Lao Hei and Xiao Ma had not come up, He Qi was bored, and walked around on the rooftop again, but he didn't want to find a CROSSBOW on the edge of the rooftop, He Qi didn't want to pick it up, but after hesitating twice, he picked it up, because He Qi remembered a small video he saw a few days ago, and he felt that this thing was also very cool to play.

CROSSBOW translated into Chinese is one word, that is, "crossbow"!

Also known as a crossbow, a crossbow is an ancient bow that uses mechanical force to shoot arrows.

The difference in the range of a crossbow is that the bow is fired by manpower, and how big a person can pull the bow apart is determined by manpower, and the range depends on the quality of the bow and the size of the manpower.

The crossbow is fired by mechanical force, and the person is only responsible for aiming, and the force is relatively fixed. In general, the range of a crossbow is about 2 times that of a bow.

About 3,000 years ago, Huaxia invented the bow and arrow, which was the earliest mechanical invention; It shows that human beings began to use composite tools, and the bow uses the power accumulated by human beings in the process of pulling strings to shoot arrows out in the form of instantaneous bursts, which shows that human beings have the knowledge of mechanical storage power.

As Engels said: "The bow and arrow are as decisive weapons as the iron sword is to the age of barbarism and firearms to the age of civilization."

Bows and arrows are the oldest used ancient weapons, bows and arrows can be shot from a distance, and primitive people have bows and arrows, it is easier to obtain prey, and they can also subdue those fierce beasts.

Later, when wars broke out between tribes, bows and arrows became important weapons. The earliest bows were made of a single piece of wood or bamboo, and the string was made from the sinew of animals; An arrow is a sharpened wooden stick or bamboo pole.

In the Spring and Autumn Period, crossbows appeared, and the crossbow machines used to control shooting were already relatively dexterous mechanical devices.

The principle of firing the crossbow is the same, it shoots farther than the bow and arrow, is more lethal, and overcomes the weakness of being limited in physical strength when drawing the bow.

By the Han Dynasty, the machining accuracy and surface finish of the crossbow machine had reached a fairly high level. The formation of eight specifications of Han crossbows, ranging from one stone to ten stones, indicates that the standards of machinery manufacturing have been initially established in the Han Dynasty.

The names of the workmen, blacksmiths, grinders, etc., were left on the crossbow machine.

Song Yingxing's (1587~c. 1666) "Heavenly Creations" described the method of testing the elasticity of the bowstring in the fifteenth volume of the "Good Soldiers": "Where the bow force is tested, the string is stepped on the ground with the foot, the scale hook is hung on the bow waist, and when the string is full, the weight hammer is pressed, then you know how much", the method is very ingenious. The book was lost in China for 300 years, and it was only in 1926 that the reprint was recovered by Japan, which is also a kind of sadness in China.