Colt Carbine 5.56mm Semi-Auto Lower Receiver Assembly

AU provides the best products on the market. When they have a sale, you can trust AU to come thru with the best prices. The M4 Carbine lower is exactly as described.

LGS was playing a trick on me, by saying I was the first one to received the first polymer lower from Colt he's ever seen! Got my attention real quick. They handed me a Colt m4 lower that was perfect, in everyway. Not a polymer, but aluminum, Great job as always AU.

The colt lower is always solid, but mine had unnatural ware to the coating in the magwell which is very weird for something that is a new factory lower, was offered $20 discount so that was okay I guess

To tell you the truth these lowers are solid , most enthusiasts criticize de modern upgrade to laser markings/ but this is the way of the future , quality is present and all tolerance is what to be expected from a milspec manufacturer.

First id like to compliment a.a on being a great retailer. I had a few questions which were answered promptly by email. Secondly this was probably the smoothest ffl purchase i have made. I believe my item shipped same day and arrived in 3 business days! The colt lower itself is fantastic. It has a mixture of cage code and unmarked parts that are all of top quality and fit. It is interesting to see the way colt is evolving. H buffer included. Get one while they are available

As always, quality merchandise great prices and superb customer service!

First time ordering from Arms Unlimited and had a phenomenal experience from purchase to fast shipping. Highly recommend.

The Colt receiver is the new style CARBINE marked with the selector stops. It was in excellent condition and shipped quickly without issues.

By far the fastest shipping I've ever experienced. Not one hiccup, in this transaction.