gas blocks and sights
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Old 12-14-2011, 02:23 AM   #1
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Default gas blocks and sights

ok im in the planning stages for a lightweight reddot centered midlength carbine type rifle.

its mainly going to be parts from rra and magpul plus possibly a full auto bcg depending on if i get my sherrif letter or not.

anyway rra has a gas block with integrated flip up sight. i like the magpul mbus as they are light stay out of the way and cheap and they just plain work. i would prefer using the magpul front rear setup but i cant find a simple rail height gas block that doesnt have funky features or cost a ridiculous ammount.

the rra flip up is an option if anyone has opinions of it or a suggestion of a decent quality reasonably rail height gas block in the ~45$ range

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Old 12-14-2011, 03:13 AM   #2
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The MBUS won't work on a railed gas block anyhow. The picatinny on them sits lower than the picatinny on the receiver, so you have to get a gas block specific flip up sight.

Why not do a low profile gas block with something like a Troy TRX Extreme or Samson Evolution handguard? They give you the picatinny rail along the top and are very lightweight.

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Old 12-14-2011, 03:30 AM   #3
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i dont need a full rail and i really like the moe handguards i just found that midwest industries makes a reciever height block but i dont know how good their quality is on ar15 parts. but its also half again as much as i wanted to pay *sigh*

troy is pricey and i dont really want a full rail on this build.

i may just go with a yhm integrated block and sight as i dont like all the sling swivels on the rra sight/block. plus one of the yhm's has a bayonet lug.

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Old 12-14-2011, 03:36 AM   #4
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An A2 FSP is always an option.

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Old 12-14-2011, 03:39 AM   #5
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the barrel i want has a a2 fsb but i dont want it in the way of the optic.

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Old 12-14-2011, 03:56 AM   #6
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I had one one my LWRC w/ a EoTech and a BCM w/ an H1 and when looking through the optic it's not noticeable. I have gone to longer rails simply because it fits my grip style better.

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Old 12-14-2011, 04:04 AM   #7
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Jon. Why does the sheriff matter on installation of a FA BCG on a semi auto rifle?

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Old 12-14-2011, 04:20 AM   #8
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Jon. Why does the sheriff matter on installation of a FA BCG on a semi auto rifle?
Cuz if i get it the upper is gonna be mated to a full auto colt m16 lower. It may change barrel plans too. Been tossing around the idea of a compact suppressed 30 cal too. Either way its still gonna need a light weight fsb/sight.

If i dont get it then i gotta sell the m16 and i pretty much got a huge blank check type budget at that point. But i still want to keep the cost reasonably low.
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Old 12-14-2011, 04:22 AM   #9
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Quote:
Originally Posted by mjkeat View Post
I had one one my LWRC w/ a EoTech and a BCM w/ an H1 and when looking through the optic it's not noticeable. I have gone to longer rails simply because it fits my grip style better.
Putting one of those vortex sparcs on it. Im pretty impressed with the strikefire. I got that for my mp 15-22 but i had it on my socom this weekend and its going for round two this coming saturday
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Old 12-14-2011, 04:36 AM   #10
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Quote:
Originally Posted by JonM View Post
the barrel i want has a a2 fsb but i dont want it in the way of the optic.
you could chop the top of the sight off. Or have Adco do it for $38.
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