QUESTION: difference in two S&W AR-15's

[Tater]

I found an unfired S&W AR-15 Optics ready carbine for $725 with 6 mags... but i also found a S&W M&P Sportster with rear and front sights for $600.00

can I remove the front & rear sights off this second one and is there any other real diferences between the 2??

I also plan to swap out the foregrips for a quad rail forend and the pinned stock to a skeleton style...

first one here
http://www.smith-wesson.com/wcsstore/SmWesson2/upload/images/firearms/zoom_lg/811013_01_lg.jpg

2nd one here
http://www.northeastshooters.com/vbulletin/attachment.php?attachmentid=18983&d=1311186253

any input on differences?

 

[Gman021]

The one thing I will say, from what I've been told, the s&w m&p 15 optics ready carbine will need it's gas block changed in order to free float a quad rail. This can be done with an after market part.Someone correct me if I'm wrong

 

[Tim94gt]

I think the sportster does not have a Forward Assist or Dust Cover.

Depending on the handguard length, you might be able to use the gas block it comes with. If you want a mid-length or rifle length rail, you will need to replace it.

 

[Gman021]

Double post somehow

 

[snwbrdr435]

I know for sure the sportster doesn't have a forward assist

 

[soam]

Here's a pretty detailed review of the M&P 15 Sport, including some notes on what differentiates it from the other models:

http://thetruthaboutguns.com/2011/0...ger/-gun-review-smith-and-wesson-mp15-sport/

 

[ItalianBostonian]

Build your own.