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Questions & Answers
Is there a specific Colt magazine I need to purchase to fit? Expert Answer

Any "Colt SMG" pattern magazine should work (CMMG, Brownells, NERD, etc)

by Matt S., Gear Expert, January 8, 2018
Are the universal adaptations or only colt mags Expert Answer

The Pro Mag AR-15 / M16 9MM Magazine Adapter will only work with Colt style 9mm magazines. However, there are many different manufacturers that use the Colt 9mm magazine pattern such as CMMG, NERD, and Brownells.

by Ethan, Gear Expert, January 20, 2022
Customer Reviews
Expert Review
Works perfectly by Ethan C., Gear Expert, June 1, 2018
I am running this in a 7" barrel pistol build, it went in well (just make sure it doesn't get caught on the mag catch during install) and comes out relatively easily. Magazines fit snugly but are smooth to engage and remove. However I would recommend...
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20/23 found this helpful
Helpful Positive Review They all laughed by Mike S, Verified Owner, August 1, 2017
They all laughed!... " you're using the Pro Mag Block?"... Well, let me tell ya, this 9mm well block is performing flawlessly. The new design installed in a snap and all my mags fit perfectly. I've been using this build for Static Steel, IDPA and USP...
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13/13 found this helpful
Helpful Positive Review New PM237B quick change 9mm mag block by Kelden, July 19, 2017
I bought this because I wanted to see how it fit and if it was really quick change how it says. I ordered it from Optics Planet on backorder not really caring when I got it. Arrived about 8 days later as advertised. On first opening the package it ...
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1/1 found this helpful
Helpful Positive Review great value by Gene C., Verified Owner, May 8, 2019
for the money I could complain, have only used the promag reinforced polymer magazines but has been pretty solid. since purchase have run 1000rds with no malfunctions. my only criticism is the seating of the magazines that occasionally will over in...
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1/1 found this helpful
Helpful Positive Review PROMAG mag block definite good buy by Rick H, January 4, 2018
The 9mm mag block is easy to install and to my surprise, allowed a smg mag to drop free and locks in tight. The block can be removed easily for upper cal change and cleaning. No more drilling the lower to install a block!
1/1 found this helpful
Helpful Positive Review It worked first time by Larry B, Verified Owner, September 30, 2017
I was looking for a low budget 9 mm AR build. Thought I would try this mag insert. I didn't know or realize that it was made by Mag Pro and it was plastic. I have had some issues with Pro Mag products in the past. Well, opened up the package and rea...
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1/1 found this helpful
Read All 65 Reviews

Up to 15% OFF Select Gun Parts

Eligible models will have a savings offer. Apply coupon and add the item to your cart for savings on that select model! Limited time only. Cannot be combined with other promotions or offers. See promotion details.
Color: Black Gun Model: AR-15 , M16 Magazine Capacity: 0 RoundCondition: New

Code: KA0-CNC-MGADPT-PM237B-0RD

MPN: PM237B

UPC: 708279013805

15%
Product Discount
List: $72.99Save 24%
$55.79
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Product Info for Pro Mag AR-15 / M16 9MM Magazine Adapter Block For Colt 9mm SMG Magazines, Quick Change

The Pro Mag AR15/M16/9mm Quick Change Mag Adapter Block lets you use Colt 9mm SMG magazines with a 9mm upper in your AR15 pistol. This Gun Parts from ProMag installs easily when you need it and is easy to remove when you want to change back to standard ammo. The 2-part design of the Pro Mag AR15/9mm Mag Adapter Block allows installation and removal without the need to take your gun apart. Customize with the Pro Mag AR15/M16 Magazine Adapter Block for your budget platform.image

Specifications for Pro Mag AR-15 / M16 9MM Magazine Adapter Block For Colt 9mm SMG Magazines, Quick Change:

Manufacturer: ProMag
Color: Black
Gun Model: M16, AR-15
Magazine Capacity: 0 Round
Condition: New
Magazine Included: No

Features of Pro Mag AR15/M16/9mm Quick Change Mag Adapter Block, KA0-G5-MGADPT:

  • Installs in AR-15® lower receivers
  • Designed for use with Colt 9mm SMG type magazines
  • Quick Change.
  • Improved innovative 2-part design.
  • Solid fit.
  • Easy to install and remove 2 parts without taking gun apart.
  • Made of high strength polymer with steel hardware, roller, ejector, and bolt stop
  • Easy on the budget.

Package Contents:

  • Pro Mag AR15/M16/9mm Magazine Adapter Block for 9mm Colt SMG Magazines, Quick Change, KA0-G5-MGADPT

Pro Mag AR-15 / M16 9MM Magazine Adapter Block For Colt 9mm SMG Magazines, Quick Change Orderable Models

List of Orderable Models

Pro Mag AR-15 / M16 9MM Magazine Quick Change Adapter Block for Colt 9mm SMG Magazines, Black, PM237B , MPN: PM237B , UPC: 708279013805 , Code: KA0-CNC-MGADPT-PM237B-0RD

Pro Mag AR-15 / M16 9MM Magazine Adapter Block For Colt 9mm SMG Magazines, Quick Change Unavailable & Discontinued Models

List of Unorderable Models

USED Pro Mag AR-15 / M16 9MM Magazine Quick Change Adapter Block for Colt 9mm SMG Magazines, Black, PM237B, EDEMO32, Used, Condition Fair , MPN: PM237B-EDEMO32 , Code: KA0-CNC-MGADPT-PM237B-0RD-EDEMO32
USED Pro Mag AR-15 / M16 9MM Magazine Quick Change Adapter Block for Colt 9mm SMG Magazines, Black, PM237B, EDEMO31, Used, Condition Fair , MPN: PM237B-EDEMO31 , Code: KA0-CNC-MGADPT-PM237B-0RD-EDEMO31
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