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AR15 gas block

2030 Views 9 Replies 0 Participants Last post by  Badshot
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I am looking at 2 AR I have decided (not set in stone) that I want either the Rock River CAR UTE2 AR pr the DPMS Lo Pro Classic. However I would immediatly add a 6 position collapsable stock the the DPMS. Which would you take. I am looking to use this gun for 2 and 3 gun matches pn a limited basis of maybe 6 or so a year till I start traveling to other matches in a year of two as I progress up. I am also trying to keep the gun at around 800 before tax. The Rock River I have on hold and is only 799. I dont have a price on the DPMS yet from my dealer.

I want to know if I want to remove the front sight on the RR which is the A2 sight can I do so by changin it and the gas block or do I need to change the barrell or upper. I may want optics on it and will want to do away with post sight
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You can punch the 2 pins that hold the sight on and clean up the gas block area then measure the gas block area to be sure of the size you need (should be .750) and order your new gas block. I would recomend going to www.ar15.com and searching Gas Block to find better information.
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Subscribing.
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I've been on there so much in the last 8 hours and have read so much that I am not sure what I read.
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Just get the RRA, you'll be very pleased. I highly recommend midlenth systems and RRA's is about the best you'll snag for a factory weapon. putting a block in place of the FSP is common and easy to do yourself. Get a railed gas block so if you chose, you can put a front flip up on it.

Like about 89% of what you read on the net, take ARFCOM with a grain of salt - my ramblings being in the other 11% of course ;) , It's more about divesting the worthy information from the raw crap.. good luck, there is a ton of crap on ARFCOM.

Talk to a shop that deals with AR's.. Jensons in Ft. Collins CO is a good one, a couple of vendors on ARFCOM are guys I would and do trust.. Leagle Transferes and Paul from Bravocompany (www.bravocompanyusa.com). And please take your time researching your gear.. there is a ton of cheap arsed stuff that will and I mean WILL break on you when you need it, buy once cry once when you buy AR stuff.

What I really want to know is why you think the front sight post on the AR is something that should be pulled off - seriously interested in why folks make certain mods to the AR platform - ? More over, am I understanding that you do not want Iron Sights of some sort on the weapon? Even for matches, better to have back ups, either extra glass or mounted backups - check out the Troy flip up sights - Hell I'm a huge fan of co-witnessing and like the red dots for that reason (read AimPoints and EOTech) but I would never run an AR or any long sight radius weapon without BUIS because Murphy goes shooting too :)

If you want to read some solid info on some of this, take that same 8 hours and more, go to www.lightfighter.net and be ready to learn.

As for the gas block.. +1 for what was said earlier, but note that you will also need to remove the flash hide/supressor in order to slide the FSP off of the barrel.. talking to one of the two folks I recommended with clairify that more.

Hope that helps..
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I would rather have a railed gas block with either a flip up front sight or a bolt on site tower as it gives you more options down the road.
You can order the railed block from just about every manufacturer when you order the weapon. Of course it's going to add to the cost as flip ups aren't cheap, but then you are paying for more flexibility plus you are going to get it cheaper now when you order than if you buy the parts separately and do the swap later on.
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Badshot said:
but note that you will also need to remove the flash hide/supressor in order to slide the FSP off of the barrel..
Oh yeah that too.
Also the pins have a fat side and a skinny side. punch them from the skinny side to the fat side.
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Verm said:
I would rather have a railed gas block with either a flip up front sight or a bolt on site tower as it gives you more options down the road.
You can order the railed block from just about every manufacturer when you order the weapon. Of course it's going to add to the cost as flip ups aren't cheap, but then you are paying for more flexibility plus you are going to get it cheaper now when you order than if you buy the parts separately and do the swap later on.

Rational is sound.. buying now when you order the weapon and thinking your getting the parts cheaper is not so true. First off you're getting their choice of block and BUIS, RRA I think is too deep in bed with YMH for my taste. I'm partial to Troy BUIS sets, A.R.M.S. comes in a close second when I don't want to spend the extra on Troy.

Now be aware if you're going to want to get into shooting LR and free float rails you might consider other options, but that changes the dynamic a bit.

No one said AR's were cheap to do up right.
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I just did'nt want the sight to get in the way of whatever type of optics that I get in the future. I am buying the rifle so that I can participate in 2 gun matches, As well as have a nice SHTF rifle. My plan was to get a good quality base and then build up as I see what I need or want as I learn more of the AR and start shooting more matches.

I would definiatly want and need Iron sights it's just that I like the flip up cause they are low-profile. That is till I was checking on prices of some nice pinned ones. So I have decided that the front post stays for a while.
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You might think about doing some reading about co-witnessing. When I first starting putting optics on my AR's I had some of the same concerns, but with most of mine now I co-witness the iron with the optic. The 2 exceptions are wtih my ACOG on a midlength AR and the 10x scope on my wanna be SPR. The SPR still has the FSP but I don't see it at all through the scope. It's a spooky arrangement, but still kinda cool. Both of my AR's with AimPoints are co-witnessed and I plan on doing the same when I get my EOTech.
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