AR15 9MM MAG WELL ADAPTOR FOR COLT / UZI STYLE

I picked this up for my 9mm build . Slid in Snugly yet perfectly to my Andersen lower . I’ve yet to fire the weapon , however , it’s seated my 10 round ASC magazines beautifully . Pending any issues, which I don’t foresee , I will update my review . Thank you for a quality piece !

The quality of this adaptor is far superior then the others. The last round bolt open functions perfectly. Only complaint is I had to bend the ejector slightly towards the bolt due to it not ejecting completely and cause if jams. After I bent it my pistol functioned perfectly 10/10. Ran 200 rounds through it rapid fire without any jamming. I strongly recomend this adaptor

Customer service was outstanding. Had some issues with delivery, they got it worked out fast. Really appreciate the support. New Unit arrived. Installation in MIL spec lower was very tight. Installation required standing and polishing of the adapter. Was not as drop-in as i would have liked. Will likely abandon and go to a dedicated lower. Nonethesless, for conversion part, its ok. I would recommend dedicated lower for new builds but if you have spare lower, its a nice add-on for a 9mm conversion.

Purchased for nine mill AR build. Very few fitment issues but it did require some smoothing of the feed ramp and fitment with my polymer lower receiver. Still ironing out reliability problems but very pleased

Easy Install, Excellent Tolerances, Minimal play between the mag adapter and mag well. Set screw at the bottom eliminates all movement and lock the adapter in place well. Standard colt metal mags seems to fit better with less resistance when reloading. The polymer promag mags seem to have alot of resistance when loading and ejecting the magazine. Excellent Product overall, well built and matches up with the KAK enhanced 9MM BCG and the KAK 4.5" Barrel perfectly as expected.

So I read all of the reviews, and decided to order one! First of all am I the only person who read the description and thought it would also take Uzi mags? Well it doesn't. Installation was a breeze, and it ran without an issue using the inexpensive polymer covered 32 round Pro Mags. I put a hundred rounds down range without a problem including steel case. This is my first 9 mm AR build. I'm using a basic Anderson multi caliber lower, with a 10 1/2" pistol upper. What I did notice not related to the product was the trigger pin started walking almost immediately, which apparently is very common in 9 m m builds. There are several companies out there that make a remedy for this. Back to the product, definitely give this a shot, and I think everybody here for their reviews to make an informed decision!

With the demise of Olympic Arms, I could no longer get ejector springs from my Olympic 9mm top end for my M16 lower. By purchasing a KAK 9mm Mag Well Adaptor, I was able to convert over to Colt mags (which are very easy to load, being double stack design). The mag well adaptor worked perfectly on semi auto, full auto, and burst modes. The bolt locked open after the last shot and the mags dropped out smoothly. The upper retention screw causes slight interference with the upper, but by adjusting the washer before tightening the screw, it closes OK. A little relief filing on the upper would help with closing the upper.

Fit and finish are top notch. This is going on my sbr build. Can’t say how it works yet as I haven’t completed my upper build, but it fit perfectly in my aero precision completed lower. Fit snug, and the converted uzi mags seat great! I see no problems so far.

Everything i order is perfect! Works amazing! Why cant other places be like this? My questions are always answered honestly and quickly. I cant say this will happen to everybody, but the last 4 emails that i've sent were answered by the pesident of the company! WHAT???? THAT'S CRAZY TALK RIGHT, NOPE, THAT HAPPENED! I will always go to KAKindustries before I try any where else!!!! THANK YOU KAK FOR EVERYTHING! JUDD DANIELS