NBS 9MM Colt Magazine Magwell Adapter for AR-15 - AD9MM-COLT Review

NBS magwell adapter

Well designed and installation was simple. A nice tight fit. Have run 150 rounds through it without a failure to feed, jamming, or stove piping. Have noticed how it takes a good bump to fix mag when bolt is closed, so have been inserting with bolt open, especially since the bolt always stays open after last round. Running steel duramags in Colt pattern, flawless..

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Good.

It was a tight fit on a Anderson lower, which I liked but installed just fine. mags lock in nicely. Have not fired with it yet but will soon. As of now I would buy again.

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A little bent

Couldn't fit AR lower, was slightly bent outward on the left side.

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Mine did not work!

The adapter fit in 5 different lower receivers but would not eject the cases. I tried 3 different uppers as well. Still no case eject. The cases would stick in uppers at all angles. Tried 2 different bcgs with same result. Finally secured the ejector with 8 40 screw. Success. I have to admit it did fit, however, it would not work with loose fitting ejector.

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NBS 9mm Colt Magazine Magwell Adapter For AR15 Rifles

I must confess it is well-made, but no different than most others like it out there, except for the Rock River Arms and Spikes Tactical Models which differ quite a bit. I bought and tested every single one on the market. For older models AR15s (i.e. 1970s and early 1980s models), such as OLD Bushmaster or even Sendra Corporation (Barrington, IL, which was bought out by Bushmaster),… read more I would highly recommend the Rock River Arms or Spikes Tactical one. For the rest of AR15s, the NBS or any other model would fit the bill quite nicely.

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Have not used it yet

I guess I get a discount code if I write a review but I will not be using this any time soon so all I can say is that it was packed well, was reasonably priced and arrived in a timely manner

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Works Great

Put this in a LRB lower. Rock and roll, ASC and Metalform mags...It works and works well.

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Great price for 9mm magwell adapter

Quality built product, works as it should. Please note that although this adapter does not state which lower receivers it is not compatible with, there are some that are very tricky to install it in. I tried to install it into an Anderson Manufacturing lower, and it would have to be hammered in. Next tried it in a Palmetto State Armory and it fit perfectly.

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Colt promag adapter

There will be some extra work. Not for the simple minded. A little filing here a little there. Adjust the ejector and voila all good. Work great runs and cycles.

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NBS 9MM Colt Magazine Magwell Adapter for AR

Very tight going into my Aero Precision M4E1 receiver. Had to lube it and used a rubber mallet to assist it going in. After installation the bolt wouldn't close. The feed ramp on the mag adaptor was too high. Had to file a lot to get the bolt to close. After much fitting, it finally worked.

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NBS 9 mm Colt Adapter

Fit and function is great. Price is very affordable. FAST SHIPPING!

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Not perfect, but decent enough

Had some difficulties out of the box. It was extremely tight in my Aero M4 lower, to the point I had to knock it in using a hammer. Once installed, it was not ejecting properly. I had to slightly bend the ejector arm inwards. After doing that, casings were ejecting consistently and without issue. I do have difficulty inserting fully loaded magazines into the magwell on a closed… read more bolt, requiring a very firm slap to get them to seat properly. I hear that this is a common issue with AR-pattern 9mm PCCs, so it's probably not the adapter's fault. Other than that, I've put maybe 200 rounds through it so far. Outside of the initial fitment and ejector issues, it's been running without a problem.

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Work like charm

went in easy work great no jams spit the rounds out like was post to

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Fit well

Had some issues with fitment, but ended up making some adjustments and now it fits well.

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A good option for the money, short of getting a dedicated receiver

A much better choice than the polymer pro-mag adapter. Perfect value for the price. However receiver fitment varies; it fits PSA lowers and mags drop free, while it can't fit in Anderson's.So test it when you buy it to make sure it fits in you receiver. There are are machining marks on the feed ramp, but I'm not sure whether that's an incomplete finish, or directional grooves to… read more help with the feeding.

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9mm adapter

looks good, fast shipping been pleased with all my orders from AR15Discounts

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Maxwell Adaptor

Easy to install and works great.

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At 9 build

Very good. Magell adapter works well.

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Quality product

Adapter fit snuggly in the magazine well. Initially had some trouble with the mags locking in, but that was corrected when I installed a Strike Ind. mag release. So far everything seems to be working OK, but round count is still pretty low. Will have to wait until ammo more generally available to test the unit further.

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Value and Quality

Install was simple and easily done . Works as well as others I've used costing twice as much

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Great quality, holds in magwell well

I had no problems with seating the mag adapter. I had trouble with my carbine but it turns out it was the magazines causing issues.

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NSB 9mm magwell

It was ok, the magwell did not fit in my DPMS Oracle at all, It got stuck and I took it out with pliers and fit it in my YHM lower 57model, and that worked fine, my ASC 10/32 mags will fit fine, but the 10Rd ASC mags I have won't fit at all :/ I don't know what to do about that.

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Much better

Bought this to replace the factory plastic block that was causing feed issues, the original fell apart as soon as it cleared the receiver, this new one fits and functions much better than the original and is at a better price too!

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Fit well in my Anderson

Fit well in my Anderson Lower, mags locking and drop out okay. Havent had chance to shoot it but overall nice fit and finish.

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Good product

This was a far step above the promag plastic insert. I had to do a little adjusting but all is good now

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Magwell adapter

Fit and finish are fantastic! Feeds 9mm thru without a problem.

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Easy Install

It fits perfectly in my PSA lower. I have tried other, Aero P, Kerri's and Anderson lowers and it is too tight.

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Works flawlessly.

Easy installation, simple instructions. "Drop-in" easy. Add a bolt, barrel and buffer and you'll hit the range. AR15 in 9mm is cheap and fun to shoot. The Colt SMG magazines are expensive, but with a minor modification an UZI 9mm magazine will work; much cheaper than the Colt magazine.

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NBS 9mm Magwell Adapter

Performed flawlessly at range with 4 different mags. No feeding problems. Installed and secured into place easily. Highly recommended.

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NBS 9MM Colt Magazine Magwell Adapter for AR-15

Awesome! quick shipment ! Fits tighter than a frogs ass in water!

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