Is there an AR stating that a Specialist has to go to parade rest for a Specialist?

LOL, They are as-sholes. Your sergeants and unit sounds defective to let this occur.

If they want to make a team leader, they should do a lateral to corporal instead of leaving them a specialist.. I have never seen anyplace that put a soldier in that kind of a difficult position, being a specialist and being "in charge" of other specialists. Put it this way, who puts green tabs on a specialist?

Time in grade, if they are appointed leaders that is covered in your oath of enlistment.

I think it's mentioned in this one ;o)

I would say the SPCs who are leaders were done a disservice by there leaders by not making them CPLs in my opinion.

Nope. They're letting position get to them. You're clear. If those other Specs are being douches about it, point them to the regs surrounding the movement to Parade Rest, Attention, etc. Being form an Infantry unit, I know they always make you go to Parade Rest for those above you, NCO or otherwise. But I quickly dismissed that (much to my former TL's disagreement) as it does not coincide with Army Regulation. You're good man. Just be respectful about it, and do it away from the Privates. And just for you SA; Specialists cannot administer corrective training. They can do additional PT WITH their Joe, but cannot smoke them. They do not have the authority, as they are not NCOs.

SPC (Join to see) alright so you got a lot of great answers to your question here, so let me go ahead and give you the bad answer.

Your two Spcs need to be knocked down a peg for what they're doing. I don't care that they're sitting in a team leader billet, or even if they're Spc(P) you all operate as equals. I'd suggest kindly pulling them aside and reminding them that you are meant to be peers. An Spc making another spc stand at parade rest during day to day operations just doesn't sit right with me, got a gut feeling they'll grow into some really terrible NCOs who need to utilize fear tactics to have subordinates follow them.
Will my advice get you fucked up? Probably. Especially if they're working that butt buddy system but at least you'll still be right.

No to parade rest, yes to addressing them as specialist. Protocol is to address personnel by Rank and name. Environment may relax this, but clearly you are not in that kind of environment. On parade rest, if they are not an NCO, by rank, no. The FM doesn't mention position, it mentions rank. This all of course unless you have a local policy dictating otherwise. But don't forget that the supervisory authority they possess still remains, irrespective of rank.

Sometimes you have to do things in the Army that seems alittle awkward. There is always someone in a position of authority over you from the bottom of the heap all the way to the top. If my squad leader were the same rank as I, then its my duty to approach them with the same respect and decorum as I would a person who is a higher rank. It seems silly but we began learning this idea in BCT with squad leaders wearing sgt stripes on their pocket flap or the assistant wearing cpl stripes and the platoon guide wearing ssg on theirs. Most of us were E-1's as were they but we understood then that they had the authority to instruct us and correct us as warranted. At the same time while you are showing the respect to the position you are demonstrating to a PFC how to respect you when you are his squad leader and he has been promoted. Remember you will be treated the way others see you treat those appointed above you for the most part. Also it doesnt cost anything to go to parade rest and address them as Specialist. If you disrespect them then mostlikely you wouldnt be taken seriously or you will have a hard time demanding respect from others.

that's not a bad question and I am glad you asked, as I read this thread there are a lot of great insights from leaders all over the force. I was in the position when I was an E-5 Squad leader. not only were the team leaders my friends but subordinates. and like any good organization you support your leaders. don't take this as a personal attack against you. they are placed into the position, you should recognize that and work with them not against them. you will all benefit from the experience and hopefully grow a better team from this experience.