Ruger AR556 adding Free float rail

[tony477g]

Hey guys I'm new here, I've had the Ruger AR556 for 2 years and have had zero problems with the gun. I'm wanting to add a free float handguard. Im curious how do I know which hand guard would fit? Right now I'm looking at the UTG Pro with Midwest industries low profile gas block.

https://www.cheaperthandirt.com/product/leapers-utg-pro-ar-15-super-slim-free-float-handguard-15-aluminum-black-finish-mtu019ss-4712274526211.do

https://www.cheaperthandirt.com/product/midwest-industries-low-profile-gas-block-750-black-mctar-lpg-816537011514.do

Thoughts? Maybe cheaper options? I have been reading something about the pins being reversed or something? Any and all recommendations are appreciated thank you!

 

[9x19]

Ruger pins their gas-block/front sight on the opposite side from standard... not an issue if replacing with a set-screw or clamp-on type gas block.

 

[tony477g]

https://www.cheaperthandirt.com/product/noveske-ar-15-low-profile-gas-block-750-steel-black-840906106198.do?sortby=ourPicks&refType=&from=Search

So I would need something more along the lines of this? Rather than the one up top I posted?

Or even something like this?

https://www.cheaperthandirt.com/product/lbe-unlimited-ar-15-low-profile-gas-black-750-inside-diameter-aluminum-black-arlpgb-765857617749.do?sortby=ourPicks&refType=&from=Search

 

[9x19]

I think all three of the ones you linked to are set-screw types, so any of them should fit with no worries about a cross pin.