02-11-2009, 07:39
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#1
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Guerrilla
Join Date: Aug 2007
Location: Southeastern PA
Posts: 207
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Gas Block pros & cons
I searched for this information and didn't find a specific discussion, but please, if this is redundant, then my apologies.
I have an opportunity to buy an RRA 16" that has a gas block with an upper rail instead of the standard gas block/front sight. My first instinct was that I would prefer the standard gas block for simplicity and cost. I plan on setting this rifle up like my issue M4, with BUIS and an ACOG TA31F.
If I buy this rifle, I will need to also buy a front sight, and a sling point. I don't like the idea of extra parts that have the potential for loosening up and affecting accuracy, (also $$$), but I also understand the advantage of a low profile gas block that might allow a different optic setup in the future if I should ever choose to do so.
I have to decide whether to take the rifle today, and if I don't, then wait who knows how long until another one comes in that does have what I want.
Is there some other factor that I am missing, some other advantages to the low profile gas block, or am I concerned over a minor point?
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bravo22b is offline
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02-11-2009, 08:02
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#2
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Quiet Professional
Join Date: Jan 2004
Location: Free Pineland
Posts: 24,804
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Quote:
Originally Posted by bravo22b
I searched for this information and didn't find a specific discussion, but please, if this is redundant, then my apologies.
I have an opportunity to buy an RRA 16" that has a gas block with an upper rail instead of the standard gas block/front sight. My first instinct was that I would prefer the standard gas block for simplicity and cost. I plan on setting this rifle up like my issue M4, with BUIS and an ACOG TA31F.
If I buy this rifle, I will need to also buy a front sight, and a sling point. I don't like the idea of extra parts that have the potential for loosening up and affecting accuracy, (also $$$), but I also understand the advantage of a low profile gas block that might allow a different optic setup in the future if I should ever choose to do so.
I have to decide whether to take the rifle today, and if I don't, then wait who knows how long until another one comes in that does have what I want.
Is there some other factor that I am missing, some other advantages to the low profile gas block, or am I concerned over a minor point?
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Given the current market for ARs, I would think that is a minor concern. Front sight assemblies are cheap, or you could just get a flip up front, like the Troy, and be done with it. Very trick, and slick.
TR
__________________
"It is not the critic who counts; not the man who points out how the strong man stumbles, or where the doer of deeds could have done them better. The credit belongs to the man who is actually in the arena, whose face is marred by dust and sweat and blood; who strives valiantly; who errs, who comes short again and again, because there is no effort without error and shortcoming; but who does actually strive to do the deeds; who knows great enthusiasms, the great devotions; who spends himself in a worthy cause; who at the best knows in the end the triumph of high achievement, and who at the worst, if he fails, at least fails while daring greatly, so that his place shall never be with those cold and timid souls who neither know victory nor defeat." - President Theodore Roosevelt, 1910
De Oppresso Liber 01/20/2025
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The Reaper is offline
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02-11-2009, 11:52
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#3
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Guerrilla
Join Date: Aug 2007
Location: Southeastern PA
Posts: 207
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Thank you for the timely and succinct advice, TR.
A quick answer by a subject matter expert as opposed to combing through web page after web page of poorly-informed comments by wannabes is one of the things that makes this site great.
Time to go spend some money.
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bravo22b is offline
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02-11-2009, 12:16
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#4
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Quiet Professional
Join Date: Jan 2004
Location: Free Pineland
Posts: 24,804
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Quote:
Originally Posted by bravo22b
Thank you for the timely and succinct advice, TR.
A quick answer by a subject matter expert as opposed to combing through web page after web page of poorly-informed comments by wannabes is one of the things that makes this site great.
Time to go spend some money.
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You might check and see if it is an AWB rifle. If it is, and the muzzle device is welded on, the front sight assembly will not come off without some machine time.
If the rifle has a screw on flash suppressor, the front sight assembly should come off after removing the two taper pins of roll pins on the lower half of the assembly. Sometimes, it takes a bit of penetrating oil or heat to come loose, and the judicious application of a hammer.
If the rails cover any of the FSA area, you may have to do some cutting there as well.
The flip up front sight option requires none of these mods.
Your call, though. Best of luck.
TR
__________________
"It is not the critic who counts; not the man who points out how the strong man stumbles, or where the doer of deeds could have done them better. The credit belongs to the man who is actually in the arena, whose face is marred by dust and sweat and blood; who strives valiantly; who errs, who comes short again and again, because there is no effort without error and shortcoming; but who does actually strive to do the deeds; who knows great enthusiasms, the great devotions; who spends himself in a worthy cause; who at the best knows in the end the triumph of high achievement, and who at the worst, if he fails, at least fails while daring greatly, so that his place shall never be with those cold and timid souls who neither know victory nor defeat." - President Theodore Roosevelt, 1910
De Oppresso Liber 01/20/2025
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