The sight is good for close-range combat since aiming down sight is faster than any other type of optics. It has one advantage over the other scopes is that it reduces vision a lot less than they do, so Artyom can see more looking through it. However, it is a cheap sight for early in the game that makes it easier to aim until more powerful scopes become available, and sometimes this is better than iron sight. Adding the laser sight makes up for this, with the laser providing the actual dot at the center of the reticle.
It provides faster short-range target acquisition, but unless combined with the laser sight attachment it can make precise shots more difficult since despite its name it does not provide an actual dot, but rather a rounded reticle with no center marker. Most smaller guns (non-heavy weapons) can support a reflex sight. Its available right away at all gun kiosks and shops. The reflex sight has no magnification, like the infrared sight. The reflex sight, or red dot sight, is the cheapest power scope and is available for purchase for 25 MGR (37 on Hardcore). This pre-war sight makes aiming the gun at close and medium range easier, without sacrificing much of the field of view. Artyom can get some MGRs back by uninstalling attachments. The prices of these attachments are different between difficulties the higher difficulty, the more the attachment costs with two exceptions in the first and last D6 level, where weapons can be equipped and customized for free. In Metro: Last Light, weapons with attachments can be found like Metro 2033, but with enough Military-Grade rounds, the attachments can be customized at weapon vendors. Using this turns the revolver into a small carbine. It greatly reduces the recoil of the gun and is always seen paired with either a suppressor or an extended barrel. The rifle stock is another attachment that is also exclusive to the revolver. In Metro 2033 the extended barrel is exclusive to the revolver and provides an improvement over the standard revolver, adding more accuracy to the gun and increasing the range. When shooting stationary, the Laser sight provides better accuracy. However, the red dot does not necessarily point exactly where you are shooting while on the move. With this attachment, Artyom can aim without using a scope or iron sight, as a red dot is projected wherever he is aiming. The laser sight is a hugely beneficial attachment on any gun as it increases the user's accuracy and is even more useful in the Ranger difficulties as the HUD is removed and there are no on-screen crosshairs. However, the Suppressor doesn't muffle a gun completely, so enemies will become suspicious when firing too close or by missing a shot. Some guns are naturally silent like those that use compressed air as a propellant such as the Tihar, Helsing, or the VSV, that has a built-in suppressor. It also reduces the recoil of the gun, increasing accuracy, but the bullets are slowed, meaning they inflict less damage on enemies. The suppressor can work as a flash hider that eliminates muzzle flash, which can be easily noticed during a firefight. The suppressor allows the user to eliminate hostiles without alerting others of their location. The suppressor, or more commonly known as a silencer, is an extremely useful attachment for those who prefer a stealthy approach in combat, or for those who need to remain stealthy in some levels. The Bayonet is also featured on NPC versions of the Kalash, Kalash 2012, and the VSV but they are unusable. There are no negatives to having this attached to the Uboinik, as it does not slow you down in any way, or restrict view like other attachments. It greatly increases the user's melee damage, and it is quite handy if you do not have time to reload and mutants are very close. It could be advantageous for stealth kills as the fact that ammunition is not required for the bayonet.
The bayonet is only available for the Uboinik automatic shotgun in Metro 2033. The Tihar and Helsing are practical with scope equipped because of their stealthy nature. Use of scopes is only recommended if precision is desired. Glares and oily thumbprints on the optics obstruct vision in the dark and this problem is made even worse with night vision goggles equipped. However, there are only two levels in Metro 2033 big enough to allow long-distance sniping. Some of the guns found in the Metro will have a scope attached to it, which allows the user to engage in long-range combat.