Colt IAR 5.56mm Upper Receiver Assembly | 11.5" Barrel

Solid upper does what it says it does. Great heat mitigation and runs like hell with a FRT lower. you will have a great suppression weapon for your assault team

Excellent transaction with AU! Had been eyeing this for awhile now and finally pulled the trigger on it and not disappointed at all. The upper arrived in excellent condition. It came with the magpul rear sight which agreed with how it is currently advertised. I did manage to find a MaTech rear drum style rear sight for a decent price elsewhere though so I am good there. This is a steal at its current sale price point and I’m very happy with the purchase and speed in which I received it. 5 stars across the board on this!!

Better than expected

This upper is a really interesting part I purchased it as a stand alone and purchased the Commando Lower separate in order to facilitate using Silencer Shop to SBR it. Now the the BBB has eliminated the $200 tax I am evened happier that I waited. Arms Unlimited has been my go to for all things Colt lately the processing time on orders, prices, and customer service have been outstanding.

Great quality and a one of a kind upper. Upper arrived in perfect condition with all accessories. Another great piece from a great company. Thank you AU.

Excellent. Exactly as ordered. Shipping was fast and no issues. I’d read about some concerns from other reviewers and have to say I am completely happy with purchase. Quality is fantastic, came in Colt box with all the bits people mentioned. Great addition!

Very well packaged. Although I was slightly disappointed this didn’t come with an H3 buffer like other uppers, I was still very pleased. C marked upper. Came with a large owners manual. I have always been a very happy customer of AU. On a side note, it would be nice to see a semi auto IAR marked lower

Swapped out the rear magtec site for a magpul one no one wants…and is magically a cheaper one too. Also doesn’t have typical colt charging handle as shown but it is a radian colt marked one so no issue there. Rear sight missing is BS..and they know it. Never responded to emails about it either and I’ve bought a crazy amount of stuff from them.

I have to say, I was cautiously optimistic about this after reading a few reviews. I had previously purchased a 6933 upper receiver several years back from AU that arrived missing a substantial amount of parkerizing on the barrel, it was essentially shining bright unfinished metal. AU’s response was “contact Colt”….Needless to say, I was pleasantly surprised by the quality and finish. It was in the original Colt Box and pristine. I also grabbed a SCW lower receiver and again have no complaints about it. Being that Colt IAR’s are listed in the 3-4k range from a lot of distributors, I call this a win and a great deal from AU