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1/14/2009 5:07:55 AM EDT
First AR15 "build".. Just bought a Rock Rover Arms complete lower receiver for $299. Looking to build up from there with the individual pieces, but have a few questions before I get started...

  1. What is the forward assist used for?

  2. Why do most of the barrels I find for sale either come in stainless color; or black with the front A2 sight?

  3. Where can I get a black barrel (16in w/o chrome lining) without an attached sight?

  4. Can someone explain the whole pre-ban / post-ban thing to me in easy, simple terms. What parts does it apply to, what to watch out for, etc.

  5. Handguards - what's standard vs carbine lengths?

  6. Flash suppressors.. does that just mean it lessens the visual spark/fire at the end of the barrel?

  7. Cheap .223 ammo - what will it's trajectory be? - aka: how far will it take for the bullet to drop an inch? Please let me know what type/grain of ammo you tested this with. I'm wondering because once I zero in a scope, how far will it's range be without adjusting elevation?

  8. Any optics recommendations on flattop upper used to drop a varmint 200 yards away?


1/14/2009 6:21:52 AM EDT
[#1]
1. to push the bolt forward incase of a poorly seated round
2. You can get barrels in stainless, parkerized, bead blasted. Just your choice
3. Several distributors....off the top of my head M1S(ER Shaw barrels), RRA(Wilson)...several others.
4. Bayonet lug, collapsable stock, mags of more then 20 rounds(10 in some states)
pistol grip, threaded flash hider....pre ban. All are GTG in most states until/if the NFA gets put back in place.
5.Standard = 12, Midlength =9, Carbine =7
6.Partially hides the flash of firing. You will never get rid of ALL the flash. If firing at night you'll also notice fire coming out of many other places. No worries, just a bit scary to the first time AR user.
7.Short answer you are GTG with most commercial ammo out to 400 yards. Typical 25 yard zero has a 200 yard zero. A 50 yard zero has a 300 yard zero.
8.I'm an iron guy so others will have to chime in on that one.
1/14/2009 6:44:39 AM EDT
[#2]
Thanks for the simple/easy answers Limerick. Much appreciated. If anyone else wants to chime in, please do.
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