View Full Version : Help me outfit my new AR-15...

Northslope Nimrod
February 12, 2011, 10:20 AM
I now have a new S&W M&P 15. It has the S&W rear flip up sight with the permanent front sight.

1. How high must my rings be to barely clear the rear sight (laying down) if I buy a scope that is 40mm. (not sure it will be that big)

2. What scope? I want something with a low power option like a 2-7. I don't want it to be too bulky on the rifle. I would like a bullet drop compensator made for the 556/223. I would like to keep it under $400 if possible. (I'm hoping to pick up something used for around $200-$250 actually)

3. Also, what do you guys think about putting tactical tops on my rings and mounting a Burris Fast Fire sight or something similar on top of the scope?

4. While your at it, recommend a two point sling with bungee or padding that could be used with this and/or my DPMS .308.

5. What else do I need on this guy? Keeping it inexpensive. Vertical foregrip? If so where to buy? Anything else that is a must?

February 12, 2011, 06:08 PM
Congrats on your new rifle! Just because there are rails doesn't mean something needs to go there :) I suggest handling one with a foregrip before buying one. Personally, I hate them. It's just not natural for me to hold a rifle that way.

The scope of choice is of course a Trijicon ACOG...That's what the military seems to be enjoying right now anyway. If you don't want to spend 12-1600 bucks for a scope, I recommend the Nikon m223 series. I have 2 of them...great scopes. For tactical use the m223 1-4x20 is small light weight and when set at 1x, you won't find anything with quicker acquisition. That's what I have on my little AR Carbine. For sniping or longer range I have on my Golani, the m223 in 4-12x42 comes with side focus and a nifty little flash kill to hide the glare of the front glass. All of them come with flip up covers and sniper turrets. Once you get your scope zeroed in at 100 yards, simply lift the turret knobs and spin them to zero...so if your scope gets bumped or you adjust for distance or windage, you can quickly and easily spin it back to zero. The bullet drop compensation is calibrated for .223 ammo...so it's ideal for your AR....and great glass. The 1x4 I think I paid a little under 300, the 4x12, I paid a little over 400. I'm sure prices vary in different locations. I'm kinda rural and short on choices.

February 12, 2011, 06:15 PM
Oh...about the mounts...if you put a carry handle on it, any scope will fit. If you are keeping it flat, you have to find a scope first then get the appropriate height mounts. Dednutz makes great one piece scope mounts...another recommendation...I think they are called Dednutz "Game Seekers"? Something like that...

February 12, 2011, 06:50 PM
1) Personally, I can't stand having a scope in the wrong place, centerline height for a flat top should be 1.3-1.6" off the rail. Most sights will not clear under the scope. You would need a long eye relief scope and a rail on a quality hand guard to have both scope and rear sight properly mounted.

For just a scope, here's a workable mount that's cheap (http://www.tufforce.com/Weaver_Picatinny_Rings-1_High_Profile_Weaver_Offset_Ring_Mount.html), here's what to get if you want a good one (http://stores.homestead.com/Laruetactical/Detail.bok?no=30)

2) I'd go a little more than 2-7x (http://www.natchezss.com/Optics.cfm?contentID=productDetail&brand=WE&prodID=WE849403&prodTitle=Weaver%202-10X38%20Classic%20V-10%20Riflescope%20Ballistic-X%20Reticle%20Matte)

3) If you really have to have a Fast Fire in addition to optics, get an offset mount (http://www.bravocompanyusa.com/ProductDetails.asp?ProductCode=DD-15000), and hold the gun at an angle so you can still get a decent cheek weld. I wouldn't bother since the scope goes down to 2x.

4) A padded bungee sling? No, get something useful instead. (http://www.midwayusa.com/viewproduct/?productnumber=213015)

5) Ammo.

February 13, 2011, 01:16 PM
I have a SMoth and Wesson MP15-22. Huge fun.
While it is different then your gun I removed the rear sight and kept the front one on just to see if it interfered. I put on a Nikon M-223 2-8 BDC reticle scope. It is huge fun to shoot and from 3 power on I do not see the front sight. I did remove it just because it was so easy to do...Plus I wasn't using it.
I also used Nikon's M-223 AR mount. It is a solid well built mount that is very affordable.
I think this set up would work well considering what you said you are looking to get.
Check out Nikonhunting.com, also click on the Spot On logo to check out the ballistic info on what your bullet is doing once it leaves your muzzle.
Nikon Pro Staff

February 13, 2011, 01:34 PM
Go with what you can afford and like. Dosen't make it right or wrong, it just makes it YOURS.



Not all ARs need to be dressed up to be great rifles.


February 13, 2011, 03:17 PM
you should definitely try to become the tacticoolest!

February 13, 2011, 04:06 PM
When you fold the rear sight down, how far above the top of the rail does it stick up? This is key information if you want a serious reply. Otherwise, everybody here is just guessing.

February 13, 2011, 06:05 PM


February 13, 2011, 08:03 PM
I think Larue tacicals SPR mount would put the scope over the fixed front site. ACOG also will be over the fixed front site.

February 13, 2011, 08:10 PM
the tacticoolest!!!!!!!!!!

February 13, 2011, 09:53 PM

How do you like that front Magpul foregrip? I just bought a Walther G22, and it desperately needs some type of foregrip, and I dont really like vertical foregrips.

Bartholomew Roberts
February 14, 2011, 02:46 AM
3. Like bedlamite, I prefer an offset mount for a mini-red dot/scope combo - http://thefiringline.com/forums/showthread.php?t=385824

5. How do you plan to use the vertical grip? http://thefiringline.com/forums/showthread.php?t=406785

February 14, 2011, 03:34 AM
The way I have my M223 1x4 set up on my carry handle carbine, I can indeed see some of the front sight at 1x but lose it at 2x. It's out of focus and fuzzy at 1x, and it doesn't block my view of the target or even distract...It actually took me a little while to notice it since my eyes were focused more on what's in focus through the scope.

February 14, 2011, 03:39 AM
actually...correction, it's completely out of sight at a little before 1.5x. I can see how it might bother some, but it doesn't bother me..even at 1x, I can only see a fuzzy image of the very top of the sight at the very bottom of the scope.

February 14, 2011, 03:54 AM
I bought the Burris FFII with crosshairs for out to 200, 300, 400, & 500 yds. Its a lot of scope for <200 dollars. CQB sling from Spectre Gear. Its a 2 pt sling made for easy transition from right/left hand. Its a good sling. You don't need all that lights and handles and stuff, put a good sling on it and a lot of ammo through it.

February 14, 2011, 04:06 AM
Here's a view of what the 1x issue with the front sight looks like. Sorry, it's 4 am...not sure while I'm still up...but the "target" is my ceiling...best I could muster at this hour :)


and the rifle... Bushmaster Carbine (M4 wannabe) Nikon M223 1-4x scope with Dednutz one piece carry handle mount.


February 14, 2011, 04:16 AM
I use a Burris Timberline 2-7x26 on my target/varmint carbine. Not as clear of glass or field of view as the Fullfield II's but for 150 bones you can't beat it. (And I consistently pick the Fullfields over the Leupolds that are $100 more :cool:)

Northslope Nimrod
February 14, 2011, 06:43 PM
If I use a "one piece" extender/riser like this:


will I still have a small issue with a blurred front sight on the lower power settings?

With my AR-10, I just put on some high rings and called it good, but i could have pushed my scope forward a tad more to have been perfectly happy. Thus, I'm thinking I should get something like this that pushes it forward a bit.

February 14, 2011, 08:49 PM
How do you like that front Magpul foregrip? I just bought a Walther G22, and it desperately needs some type of foregrip, and I dont really like vertical foregrips.

Decent product, but I just changed it out for a Magpul RVG...