ATRS lower with Colt IUR?

[bongoz]

Is anyone running an ATRS lower with a Colt IUR upper? How do the two shades of black match up? Do they fit nice and tight? Would I be better off with a Diemaco lower?

I'm set on getting an IUR as my upper but still unsure of what I want to get as a lower.

This is my first AR build so excuse me for my lack of knowledge.

 

[Blastattack]

An AR lower is an AR lower and for all intents and purposes they are 100% identical to each other. ATRS products are very nicely manufactured and their lower has the ambi-bolt release, if that's an important feature for you, then get it. A Diemaco lower is exactly the same as a $70 DPMS lower, is just happens to be made in Canada and have the Colt/Diemaco markings. Functionally they are all identical and completely interchangeable.

 

[r34skyline]

I have a sa20 and a iur top and there is discolouration between both. Chances are there will be some discolouration between the two, functionally it will work just fine.

 

[Mister Donut]

Colt Canada Stripped lowers come in a light shade of gray:

http://3.bp.########.com/-7H0bWoTQ5sE/VgtqJgeUi7I/AAAAAAAAYXM/SSLMF1pBNn8/s1600/DSC_0679.JPG

mated to a Colt Canada IUR:

http://2.bp.########.com/-rcGC30PMf_s/VgtqMPtRRTI/AAAAAAAAYXU/yzUeL2dgFzc/s1600/DSC_0680.JPG

And after I let it sit in G96 for a few weeks it got a bit darker:

http://3.bp.########.com/-DTjQR8RbU1A/VhnjiPFSkwI/AAAAAAAAYsA/ZNI9r23Eiro/s1600/PA080904.JPG

But it was still noticeably lighter than the IUR.

http://4.bp.########.com/-sCyRgpxIY_8/VhnkWScAGlI/AAAAAAAAYsQ/qA-MCC2NrMk/s1600/PA100934.JPG

http://2.bp.########.com/-ga2GfjW5K4A/VhnkZn34sbI/AAAAAAAAYsY/9ch9_UBT3K4/s1600/PA100936.JPG

Which isn't far off from the work rifle:

http://1.bp.########.com/-BgoElN3HmI8/T10FmAvlV2I/AAAAAAAAJRI/UoMi2WsQHOk/s1600/P1071306.JPG

http://2.bp.########.com/-4ml5XVX4Wz0/T10FeCR9KrI/AAAAAAAAK-o/tIk_f6k9LeU/s1600/P1071302.JPG