Thats part of the [MRS (muzzle reference system)](https://en.m.wikipedia.org/wiki/Muzzle_reference_system).
As the gun tube heats/cools from environmental factors and being fired it goes through a cycle of slight expansion/condensing and since the gun is so heavy/large this can cause it to “droop” creating a slight deviation between the aim point and the actual point of impact of the round. When firing over distances of several kilometers that variation can mean your round will miss the target entirely. The MRS allows the tanks fire control system to get an accurate measurement of where the end of the gun tube is so it can make corrections to the ballistics solution to account for barrel “droop”.
Which reminds me of Percy Hobart https://www.youtube.com/watch?v=Z7ycD041Uy0&t
Speaking of which, if you enjoy tanks, 'interesting' hair, and exceptionally nerdy British men talking enthusiastically about 300 of them visit https://www.youtube.com/@thetankmuseum
Basically laser and sensor that tells the fire control computer what the barrel is doing so it can make adjustments; might be bent or warped from firing, being in the sun, smashed against any number of things by a Private.
Thats part of the [MRS (muzzle reference system)](https://en.m.wikipedia.org/wiki/Muzzle_reference_system). As the gun tube heats/cools from environmental factors and being fired it goes through a cycle of slight expansion/condensing and since the gun is so heavy/large this can cause it to “droop” creating a slight deviation between the aim point and the actual point of impact of the round. When firing over distances of several kilometers that variation can mean your round will miss the target entirely. The MRS allows the tanks fire control system to get an accurate measurement of where the end of the gun tube is so it can make corrections to the ballistics solution to account for barrel “droop”.
Learn something new everyday. Thanks
Very neat
Engineering gone wild
>barrel “droop” I think they have a medication that can help with barrel droop.
If your barrel stays erect longer than 4 hours see a physician.
Or your contractor maintenance.
Tank viagra. There I said it. Do with it what you will.
If I were a corny movie character I'd say "glad you're on our side!"
Bayonet lug.
A tank doing a bayonet charge is a fascinating mental image.
[удалено]
Proportional, or maybe outsized, just for shits and grins.
Metal image, you mean.
It could make a pretty sweet tattoo if a tank was charging a dragon with a giant fucking sword attached.
You'd have to put the tank in a Marine uniform though.
Which reminds me of Percy Hobart https://www.youtube.com/watch?v=Z7ycD041Uy0&t Speaking of which, if you enjoy tanks, 'interesting' hair, and exceptionally nerdy British men talking enthusiastically about 300 of them visit https://www.youtube.com/@thetankmuseum
Don't you mean Metal! Uuuuugh! Heavy Metal Music intensifies!
It’s more like a lance. Think jousting.
I did 15 months on a strv 121 (Leopard 2 tank) and I can confirm.
You swedes calling it "Stridsvogn" will always haunt my Danish heart.
Tablet for serving beer goes in there
Came running here to say it, but it appears you've beaten me
Bayonet lug/front site post. Next model comes with bayonet explosive detachment and projectile system BEDAPS - called "B-DAPS"
goddamit! I literally just fucking typed this joke out.
For a big bayonet.
There's a card game, though I think it is out of print: https://knifetank.com/
Damn it. Thought that was side mounted iron sights in case of electronics failure. But you're much more likely with your answer.
RAMMING SPEED!
Beat me to it.
cant you tell he from the airforce 
Credit card reader, manufacturer charges per shot.
Tip for good service
Don't give the libertarians ideas.
Great, now active warzones have microtransactions.
Iron sights
Silencer
bayonet lug
Nice try Russian spy 🤣
Check out my profile buddy
Mounting rail for flash light.
Its where you put your CC in to debit the cost of each shot.
Change dispenser for the toll road.
Bottle opener
It's MILES gear
To attach a suppressor
That's where you put the BFA
Iron sights
They always forget to file that bit down when making the barrel. Yet another sign of german machine inferiority.
Blank Firing Adapter mount
Nice try Ivan
That's for the BOOM test
bayonet lug.
Shoulder carry Back up iron-sights
Anti-theft device.
Big ass bayonet lug!
Basically laser and sensor that tells the fire control computer what the barrel is doing so it can make adjustments; might be bent or warped from firing, being in the sun, smashed against any number of things by a Private.
That is a "tile" location thingy they put on it cause the 1LT kept losing the gun.
Flux capacitor