Panzer Arms AR-12 KMR 12 GA Semi-Auto Shotgun PAAR12KMR

Out of Stock


The Panzer Arms AR-12 KMR is the most recent generation (G4) of AR-12 comes with flip up sights and Key Mod attachment points on the handguard, as well as picatinny rail sections on the front end of the handguard. These G4 models come with the following improvements: an upgraded gas system from the factory, improved grip, a thin key mod handguard, and three chokes.

A picatinny rail across the top of the receiver allows for easy mounting of optics, in addition to the included flip up sights. It  also comes with a stylish barrel shroud and three chokes. The shotgun comes boxed, with two 5 round magazines, flip up sights, cleaning kit, manual, and one year warranty from the importer. Panzer continues to improve on some of the best AR 15 style shotguns on the market today.


  • AR-15 style controls
  • Upgraded G4 gas system, with high velocity and standard velocity pistons
  • 3″ Magnum chamber, allows for use of 2 3/4″ and 3″ shells
  • Thin Key Mod Handguard
  • Flip up front and rear sights
  • Three chokes included: Full, Modified, and Cylinder
  • Two 5 round magazines
  • Adjustable cheek riser and rubber recoil pad on buttstock
  • Cleaning Kit






Gauge                                              12  

Chamber                                          3”/76 mm

Action                                               Magazine Fed Semi-Auto

Barrel Lenght                                  51 cm/20”

Upper Receiver                               Aluminum 7075

                                                         with anadized finish

Lower Receiver                               PA 6 GFR 30 / PA6 GFR 31

Barrel Coating                                 Chrome

Barrel Material                                 4140 Full Steel

Magazine Capacity                          2+1/5+1/10+1

Sight Material                                  PA 6 GFR 30 / PA6 GFR 30

Overall Lenght                                 98 cm/40,5”

Overall Weight                                 6,5 lbs

(with empty magazines)

Sights                                               Folding type & Adjustable

Stock                                                “PA 6 GFR 30 / PA6 GFR 31”                                                                                                                                 fixed the upper receiver

                                                          with receiver retention bolt


Grip                                                   Ergonomic pistol grip

Hand Guard                                     Machined 7075 anadized                                                                                                                                      Aluminum Quad Rail Handguard

Gas Chamber                                  Welded over the barrel

Trigger                                             Standard

Safety                                              Manual Left Side

Magazine Relase                            Oval type and smaller in size

Pivot and takedown                       -

Pim at lower receiver

Fixing style                                    Uses barrel fixing nut and nucp to fix                                                                                                                   barrel and handguard

Operating                                       Uses operating rod and spring for rear and                                                                                                       forward movement of the bolt

Color Options                                Anodized

                                                        Cerakote Coating








Categories: Semi Auto Shotguns
Tags: AR-12, AR12
Condition: New
Manufacturer: Panzer Arms
Model: AR-12 KMR
Caliber: 12 GA
SKU: 8682419000332
UPC: 8682419000332
Vendor: Gunprime
Reviews (2)
By Mike F on 09/14/22
Awesome firearm and even better service!

Ordered mine Tuesday after business hours and received it Friday by 2pm. Very prompt shipping!

By Colin P on 05/14/22

This AR12 is in my opinion outstanding. The recoil is unreal for a 12 gauge and it's weight is surprising. Accurate. Great gun. And, Yes I would buy it again.

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