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Matador Arms Mat9 7.825 in 9mm Upper Receiver — Free 2 Day Shipping w/ code 2DAYAIR — 3 models

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Questions & Answers
does this require a traditional buffer assembly? Manufacturer Answer

It does not. You can use a pic rail adapter or a traditional set up. Everything is self contained in the upper.

by Matador Arms, Manufacturer, November 27, 2024
Is this an NFA item? Manufacturer Answer

Depends on the lower set up you use.

by Matador Arms, Manufacturer, November 27, 2024
View All Q&A You Have a Question? Ask!
Customer Reviews
Helpful Positive Review Amazing Upper by Matt, Verified Owner, October 26, 2023
This upper is a great product. I would recommend the product to anyone looking to build an ar-9 pistol or carbine. I've paired my mat-9 with a spikes tactical STG9 lower and Franklin armory binary trigger. The weapon also ran flawless with a silencer...
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5/6 found this helpful
Helpful Positive Review Good but... by Eli, October 24, 2023
I love everything about this mat9 upper, except for the internal guide rod is plastic and I've been hearing around online that people's are breaking after not that many rounds. I haven't shot mine yet, waiting on the matador glock lower in fde, so I'...
Read More...
3/4 found this helpful
Helpful Positive Review Reliable, Versitile, Affordable by Hooligun, Verified Owner, April 9, 2024
Great upper, well designed from a Veteran owned company. Questions get answered quickly from David. Ordered a foldable charge lever and upgraded charging block from HB industries and just love this set up. Can use on multiple lowers (check out Matado...
Read More...
3/4 found this helpful
Helpful Positive Review functions great, looks great. by Gregg Burke, Verified Owner, December 10, 2023
Great quality upper, the grey is darker than expected but other than that it functions flawlessly so far. Great buy
2/2 found this helpful
Helpful Positive Review worth every penny by Brad B, Verified Owner, November 14, 2023
Hands down the best option if you're looking to build a PCC. Easy operations and very accurate. The monolothic upper is a huge pluse and makes building a PCC very easy and straightforward. I would highly recommend this receiver to anyone in the marke...
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4/4 found this helpful
Helpful Negative Review Issue after issue. by Matt, Verified Owner, May 26, 2025
First 50 rounds with 3 exomags had small issues. Then it went downhill. Not reliable at all, constantly jam, and multiple bullet set backs. Backplate cracked in half. Parts were sent to repair the issue with pretty decent customer service. Got them...
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1/1 found this helpful
Read All 12 Reviews

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Product Info for Matador Arms Mat9 7.825 in 9mm Upper Receiver

The Mat9 Upper is a self-contained complete 9mm receiver. Bufferless, compact and reliable. The blowback system runs suppressed or unsuppressed without spring changes. The charging handle is non-reciprocating and reversable for right or left-handed shooters. It is compatible with AR9s and AR15s with Mag Adapters. Compatible with Glock, Sig, Colt, Scorpion and Mp5 magazines.image

Specifications for Matador Arms Mat9 7.825 in 9mm Upper Receiver:

Manufacturer: Matador Arms
Caliber: 9mm Luger
Overall Length: 15 in
Barrel Length: 8.5 in
Barrel Profile: Straight
Barrel Twist Rate: 1-10
Threads per Inch: 1/2x28
Muzzle Device: Thread Protector
Finish: Anodized
Fabric/Material: 4140 Nitrided Steel
Handguard Length: 7 in
Gun Type: Pistol
Weight: 3 lb
Condition: New
Barrel Material: 4150 Chrome Moly Vanadium
Magazine Included: No

Features of Matador Arms Mat9 7.825 in 9mm Upper Receiver

  • Non-reciprocating steel charging handle (ambidexterous)
  • NATO 1913 Spec top rail
  • 3 Mlok slots (both sides, bottom)
  • Compatible with LRBHO (Last Round Bolt Hold Open) lower receiver

Package Contents:

  • Matador Arms Mat9 7.825 in 9mm Upper Receiver
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Matador Arms Mat9 7.825 in 9mm Upper Receiver Orderable Models

List of Orderable Models

Matador Arms Mat9 Upper Receiver, 9mm, 7.825 in, 1-10 Twist, 1/2x28 Threads, 4150 Lightweight Nitrided, FDE, 850045441005 , MPN: MAT9-U-FDE , UPC: 850045441029 , Code: MDA-URC-X4TY-850045441005
Matador Arms Mat9 Upper Receiver, 9mm, 7.825 in, 1-10 Twist, 1/2x28 Threads, 4150 Lightweight Nitrided, Black, 850045441029 , MPN: MAT9-U-BLK , UPC: 850045441005 , Code: MDA-URC-X4TY-850045441029
Matador Arms Mat9 Upper Receiver, 9mm, 7.825 in, 1-10 Twist, 1/2x28 Threads, 4150 Lightweight Nitrided, Gray, 850045441036 , MPN: MAT9-U-GRY , UPC: 850045441036 , Code: MDA-URC-X4TY-850045441036

Matador Arms Mat9 7.825 in 9mm Upper Receiver Unavailable & Discontinued Models

List of Unorderable Models

USED Matador Arms Mat9 Upper Receiver, 9mm, 7.825 in, 1-10 Twist, 1/2x28 Threads, 4150 Lightweight Nitrided, Black, MAT9-U-BLK, EDEMO1, Condition Like New, Inspect and Rebox , MPN: MAT9-U-BLK-EDEMO1 , Code: MDA-URC-X4TY-MAT9-U-BLK-EDEMO-RE-A
DEMO, Matador Arms Mat9 Upper Receiver, 9mm, 7.825 in, 1-10 Twist, 1/2x28 Threads, 4150 Lightweight Nitrided, Black, MAT9-U-BLK , MPN: MAT9-U-BLK-DEMO , Code: MDA-URC-X4TY-MAT9-U-BLK-DEMO
USED Matador Arms Mat9 Upper Receiver, 9mm, 7.825 in, 1-10 Twist, 1/2x28 Threads, 4150 Lightweight Nitrided, Black, MAT9-U-BLK, EDEMO3, Excellent, Inspect and Rebox , MPN: MAT9-U-BLK-EDEMO3 , Code: MDA-URC-X4TY-MAT9-U-BLK-EDEMO-RE-B
USED Matador Arms Mat9 Upper Receiver, 9mm, 7.825 in, 1-10 Twist, 1/2x28 Threads, 4150 Lightweight Nitrided, FDE, MAT9-U-FDE, EDEMO1, Condition Fair, Used , MPN: MAT9-U-FDE-EDEMO1 , Code: MDA-URC-X4TY-MAT9-U-FDE-EDEMO-US-D
USED Matador Arms Mat9 Upper Receiver, 9mm, 7.825 in, 1-10 Twist, 1/2x28 Threads, 4150 Lightweight Nitrided, Black, MAT9-U-BLK, EDEMO2, Used, Condition Like New , MPN: MAT9-U-BLK-EDEMO2 , Code: MDA-URC-X4TY-MAT9-U-BLK-EDEMO2
USED Matador Arms Mat9 Upper Receiver, 9mm, 7.825 in, 1-10 Twist, 1/2x28 Threads, 4150 Lightweight Nitrided, FDE, MAT9-U-FDE, EDEMO2, Condition Parts Only/Salvage, Defective , MPN: MAT9-U-FDE-EDEMO2 , Code: MDA-URC-X4TY-MAT9-U-FDE-EDEMO-DF-F
USED Matador Arms Mat9 Upper Receiver, 9mm, 7.825 in, 1-10 Twist, 1/2x28 Threads, 4150 Lightweight Nitrided, Gray, MAT9-U-GRY, EDEMO2, Used, Condition Like New , MPN: MAT9-U-GRY-EDEMO2 , Code: MDA-URC-X4TY-MAT9-U-GRY-EDEMO2
USED, Matador Arms Mat9 Upper Receiver, 9mm, 7.825 in, 1-10 Twist, 1/2x28 Threads, 4150 Lightweight Nitrided, FDE, MAT9-U-FDE , MPN: MAT9-U-FDE-EDEMO , Code: MDA-URC-X4TY-MAT9-U-FDE-EDEMO-RE-B
USED, Matador Arms Mat9 Upper Receiver, 9mm, 7.825 in, 1-10 Twist, 1/2x28 Threads, 4150 Lightweight Nitrided, FDE, MAT9-U-FDE , MPN: MAT9-U-FDE-EDEMO , Code: MDA-URC-X4TY-MAT9-U-FDE-EDEMO-IN-D
DEMO, Matador Arms Mat9 Upper Receiver, 9mm, 7.825 in, 1-10 Twist, 1/2x28 Threads, 4150 Lightweight Nitrided, FDE, MAT9-U-FDE , MPN: MAT9-U-FDE-DEMO , Code: MDA-URC-X4TY-MAT9-U-FDE-DEMO
DEMO, Matador Arms Mat9 Upper Receiver, 9mm, 7.825 in, 1-10 Twist, 1/2x28 Threads, 4150 Lightweight Nitrided, Gray, MAT9-U-GRY , MPN: MAT9-U-GRY-DEMO , Code: MDA-URC-X4TY-MAT9-U-GRY-DEMO
Matador Arms Mat9 Upper Receiver, 9mm, 7.825 in, 1-10 Twist, 1/2x28 Threads, 4150 Lightweight Nitrided, FDE, MAT9-U-FDE
Matador Arms Mat9 Upper Receiver, 9mm, 7.825 in, 1-10 Twist, 1/2x28 Threads, 4150 Lightweight Nitrided, Gray, MAT9-U-GRY
Matador Arms Mat9 Upper Receiver, 9mm, 7.825 in, 1-10 Twist, 1/2x28 Threads, 4150 Lightweight Nitrided, Black, MAT9-U-BLK
Matador Arms Mat9 Upper Receiver, 9mm, 7.825 in, 1-10 Twist, 1/2x28 Threads, 4150 Lightweight Nitrided, Gray, MAT9-U-GRY
Matador Arms Mat9 Upper Receiver, 9mm, 7.825 in, 1-10 Twist, 1/2x28 Threads, 4150 Lightweight Nitrided, FDE, MAT9-U-FDE
1 of 4 images
Matador Arms Mat9 Upper Receiver, 9mm, 7.825 in, 1-10 Twist, 1/2x28 Threads, 4150 Lightweight Nitrided, FDE, MAT9-U-FDE
Matador Arms Mat9 Upper Receiver, 9mm, 7.825 in, 1-10 Twist, 1/2x28 Threads, 4150 Lightweight Nitrided, Gray, MAT9-U-GRY
2 of 4 images
Matador Arms Mat9 Upper Receiver, 9mm, 7.825 in, 1-10 Twist, 1/2x28 Threads, 4150 Lightweight Nitrided, Gray, MAT9-U-GRY
Matador Arms Mat9 Upper Receiver, 9mm, 7.825 in, 1-10 Twist, 1/2x28 Threads, 4150 Lightweight Nitrided, Black, MAT9-U-BLK
3 of 4 images
Matador Arms Mat9 Upper Receiver, 9mm, 7.825 in, 1-10 Twist, 1/2x28 Threads, 4150 Lightweight Nitrided, Black, MAT9-U-BLK
Matador Arms Mat9 Upper Receiver, 9mm, 7.825 in, 1-10 Twist, 1/2x28 Threads, 4150 Lightweight Nitrided, Gray, MAT9-U-GRY
4 of 4 images
Matador Arms Mat9 Upper Receiver, 9mm, 7.825 in, 1-10 Twist, 1/2x28 Threads, 4150 Lightweight Nitrided, Gray, MAT9-U-GRY

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