Shipping Disclaimer:

We are experiencing longer-than-usual processing and shipping times. Please allow for additional processing time before your order is shipped. We appreciate your patience and understanding during this time. Rest assured, we are doing our best to fulfill your orders as quickly as possible. Thank you for being a valued customer.

  1. Firearm Accessories
  3. Magazines

Magpul PMAG GEN M3 5.56mm 20-Round Black Magazine

  • Item Number: MAG560-BLK
  • /
  • View More Items by Magpul
  • /
  • Condition: NEW
PMAG 20 GEN M3 AR-15 556 NATO 20 RD MAG
$12.99 $13.99
Limited-time Deal
In Stock with FLAT RATE Shipping
Ships free when purchased with a firearm
  • MAGPUL PMAG GEN M2 5.56mm 30-Round Black Magazine

    Magpul PMAG GEN M2 5.56mm 30-Round Black Magazine
    $12.95 $8.99

  • AMEND2 AR15/M4 Mod.2 5.56mm/223 Rem. 30-Round Magazine (Black)

    Amend2 AR15/M4 Mod.2 5.56mm/223 Rem. 30-Round Magazine (Black)
    $14.99 $6.97

  • MAGPUL PMAG GEN M3 5.56mm 30-Round Black Magazine with Window

    Magpul PMAG GEN M3 5.56mm 30-Round Black Magazine with Window
    $13.99

  • MISSION FIRST TACTICAL 223/5.56mm 30-Round AR-15 Magazine with Blue Line American Flag Finish

    Mission First Tactical 223/5.56mm 30-Round AR-15 Magazine with Blue Line American Flag Finish
    $24.99 $10.99

  • MAGPUL PMAG GEN M3 5.56mm 10-Round AR-15 Magazine

    Magpul PMAG GEN M3 5.56mm 10-Round AR-15 Magazine
    $12.99

  • MAGPUL PMAG GEN M3 5.56mm 30-Round Coyote Tan AR/M4 Magazine with Window

    Magpul PMAG GEN M3 5.56mm 30-Round Coyote Tan AR/M4 Magazine with Window
    $13.99

  • AMEND2 AR-15 5.56/223 30 Rd Sprinkle Donut Mod.2 Magazine

    Amend2 AR-15 5.56/223 30 Rd Sprinkle Donut Mod.2 Magazine
    $19.99

  • MAGPUL PMAG GEN M2 5.56mm 30-Round Magazine with Window

    Magpul PMAG GEN M2 5.56mm 30-Round Magazine with Window
    $12.99

  • AMEND2 AR15/M4 Mod.2 5.56mm/223 Rem. 20-Round Magazine (Black)

    Amend2 AR15/M4 Mod.2 5.56mm/223 Rem. 20-Round Magazine (Black)
    $14.99 $8.99

  • AMEND2 AR15/M4 Mod.2 5.56mm/223 Rem. 30-Round Magazine (Trump Keep America Great Limited Edition)

    Amend2 AR15/M4 Mod.2 5.56mm/223 Rem. 30-Round Magazine (Trump Keep America Great Limited Edition)
    $14.99

  • AMEND2 AR15/M4 Mod.2 5.56mm/223 Rem. 30-Round Magazine (Trump 2020 Limited Edition)

    Amend2 AR15/M4 Mod.2 5.56mm/223 Rem. 30-Round Magazine (Trump 2020 Limited Edition)
    $14.99

  • MAGPUL PMAG GEN M3 5.56mm 30-Round Black Magazine

    Magpul PMAG GEN M3 5.56mm 30-Round Black Magazine
    $11.99

  • PMC 223 Rem 55 gr FMJ BT Bronze 20/Box

    PMC 223 Rem 55 gr FMJ BT Bronze 20/Box
    $9.99
    ($0.50 / round)

  • Winchester 5.56 NATO 55 Grain FMJ USA M193 20/Box

    Winchester 5.56 NATO 55 Grain FMJ USA M193 20/Box
    $10.99
    ($0.55 / round)

  • Hornady 223 Rem 62 gr FMJ Black 20/Box

    Hornady 223 Rem 62 gr FMJ Black 20/Box
    $17.11 $13.99
    ($0.70 / round)

  • Federal 223 Rem 64 gr JSP Power-Shok 20/Box

    Federal 223 Rem 64 gr JSP Power-Shok 20/Box
    $19.99
    ($1.00 / round)

  • Hornady 223 Rem 55 gr V-MAX Varmint Express 20/Box

    Hornady 223 Rem 55 gr V-MAX Varmint Express 20/Box
    $27.24 $25.99
    ($1.30 / round)

  • Winchester 223 Rem 55 gr BTHP Super X Varmint and Target 20/Box

    Winchester 223 Rem 55 gr BTHP Super X Varmint and Target 20/Box
    $16.99
    ($0.85 / round)

  • Hornady 223 Rem 73 gr FTX Critical Defense 20/Box

    Hornady 223 Rem 73 gr FTX Critical Defense 20/Box
    $28.08 $25.99
    ($1.30 / round)

  • Winchester 223 Remington 69 gr Matchking HPBT Competitive Target 20/Box

    Winchester 223 Remington 69 gr Matchking HPBT Competitive Target 20/Box
    $19.99
    ($1.00 / round)

  • Hornady 5.56 NATO 75 gr BTHP Superformance Match 20/Box

    Hornady 5.56 NATO 75 gr BTHP Superformance Match 20/Box
    $34.25 $21.99
    ($1.10 / round)

  • Winchester 5.56mm M855 Green Tip 62 gr FMJ Stripper Clip 420 Rounds in Metal Ammo Can

    Winchester 5.56mm M855 Green Tip 62 gr FMJ Stripper Clip 420 Rounds in Metal Ammo Can
    $349.99
    ($0.83 / round)

  • Winchester 223 Rem 64 gr Power Point Super X 20/Box

    Winchester 223 Rem 64 gr Power Point Super X 20/Box
    $24.99
    ($1.25 / round)

  • Federal 223 Rem 55 gr FMJ BT American Eagle 20/Box

    Federal 223 Rem 55 gr FMJ BT American Eagle 20/Box
    $11.99
    ($0.60 / round)

Product Description

The next-generation PMAG 20 GEN M3 is a 20-round 5.56x45 NATO (.223 Remington) polymer magazine for AR15/M4 compatible weapons. Along with expanded feature set and compatibility, the GEN M3 incorporates new material technology and manufacturing processes for enhanced strength, durability, and reliability to exceed rigorous military performance specifications.

Modified internal and external geometry also permits operation with a wide range of non Colt-spec platforms such as the HK® 416 and MR556A1, M27 IAR, British SA-80, FN® SCAR™ MK 16/16S, and others. A redesigned bolt catch notch in the rear of the magazine provides increased bolt catch clearance, while an over-travel stop on the spine helps ensure the magazine will not over-insert on compatible weapons.

The PMAG 20 GEN M3 features a long-life USGI-spec stainless steel spring for commonality, four-way anti-tilt follower and constant-curve internal geometry for reliable feeding, and simple tool-less disassembly to ease cleaning. In addition, an included pop-off Impact/Dust Cover can optionally be used to minimize debris intrusion and protect against potential damage during storage and transit. Low profile ribs and new aggressive front and rear texture gives positive control of the GEN M3 in all environments, and a paint pen dot matrix has been added to the bottom panel of the body to allow easy marking by the end user for identification. The new, easy to disassemble flared floorplate aids extraction and handling of the magazine while providing improved drop protection, but is slightly slimmer than before for better compatibility with tight double and triple magazine pouches.

  • Manufacturer: Magpul
  • Fits: AR/M4 Platforms
  • Caliber: 5.56mm
  • Capacity: 20-Round
  • Features: Next-generation impact and crush resistant polymer construction,Constant-curve internal geometry for smooth feeding, Anti-tilt, self-lubricating follower for increased reliability

Customer Comments & Questions

Customer Reviews

Write a review
(5 out of 5) Magpul Magazines
by from Milton, VT on

Mags work well. I had some loading issues but these held the round sin place while shooting at the range.

(5 out of 5) MAGPUL pmag
by from Milton, VT on

Good price for a mag that works well. Loads easily and works well in my AR 15.

(5 out of 5) MAGPUL 20 round mag
by from Milton, VT on

Well made and loads easy. No problem with feeding. Price is cheap for a good magazine.

(5 out of 5) MAGPUL magizine
by from Milton, VT on

Very well made and easy to load. They feed well into my S&W M&P 15 AR15.

(5 out of 5) MAGPUL MAGAZINES
by from Milton, VT on

These 20 round Magpul magazines work very well for the money. Easy to load and hold the rounds well. I will buy more in the future,

(5 out of 5) MAGPUL MAGAZINES
by from Milton, VT on

Well made and loads easy for the price. Worked well on the range.

(5 out of 5) 20 roung Magpul gen3
by from Sun City, AZ on

This company is awesome to work with! Fast delivery, bought a few items from them never had an issue. Great service on the phone as well. Thank you Sportsman's Outdoor Superstore. I will be doing business in the future and I highly recommend!!

(5 out of 5) Decent Enough
by from Spring Valley, CA on

Reasonably effective magazine for use in my Colt M4. The nice thing is the included dust covers that come with the magazines, keeps the inside clean when not in use.