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Magpul Industries PMAG GEN M3 AR-15/M16/M4 .223 Rem/5.56x45mm NATO 20 Round Rifle Magazine
As Low As $14.19 Save Up to $12.55
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Most Helpful Positive Review Always work
Bought these 20 round mags for a couple reasons. First, when shooting bench rest, the 30 round mags hit the bench. The shorter 20 round mag allows for plenty of clearance from the bench or, when shooting prone. Second, 20 round mags allow me to NOT go thru my reloaded ammo so quick.
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balanced and practical

by OP Customer, Verified Owner from TX, United States Written on May 22, 2026
The Magpul PMAG 20-round magazine is one of the best-balanced AR magazines available. It keeps the rifle compact and lighter than a 30-round mag, making it much more comfortable for bench shooting, prone positions, hunting, storage, and carrying in vehicles or packs. At the same time, it still provides enough capacity to avoid constant reloads like with 10-round magazines.

Like other PMAGs, reliability is excellent — durable polymer construction, smooth feeding, anti-tilt follower, and proven performance under hard use. The 20-round size simply gives the rifle a cleaner handling profile without sacrificing practicality.
Would recommend: Yes
Was it helpful to you? Yes | No

solid product

by brib, Verified Owner from VA, United States Written on April 12, 2026
Happy with the quality, solid product. Will be buying more in the future. Highly recommend
Would recommend: Yes
Was it helpful to you? Yes | No

magpul is great

by Bear, Verified Owner from NM, United States Written on March 24, 2026
Only buy magpul this is a great product.i really like the gen3 also buy some Ranger plates great combo
Would recommend: Yes
Was it helpful to you? Yes | No

quality as always

by mark, Verified Owner from IA, United States Written on March 14, 2026
Needed a 20 round for a daniel defense sniper rifle as the 30 is to long with the bipod.
Would recommend: Yes
Was it helpful to you? Yes | No

Great for sighting in

by BIGJMO, Verified Owner from TN, United States Written on February 23, 2026
Being shorter than the 30 rounder, this one gets along better with some of the rests I’ve used at the range. It also lets your barrel cool a little more when shooting prairie dogs than the 30 rounder. Typical high Magpul quality.
Would recommend: Yes
Was it helpful to you? Yes | No

Easy Mag for use at gun range

by IrishTom1969, Verified Owner from VA, United States Written on February 12, 2026
Best mag size to use at range. Just enough rounds to help with sighting in your AR.

HIGHLY RECOMMEND!
Pros:
  • Magpul brand
Cons:
  • None
Would recommend: Yes
Was it helpful to you? Yes | No

Great Mag for going Prone

by Robert, Verified Owner from FL, United States Written on January 7, 2026
Mag Pull Mags are great. Great Mag for going Prone or Bench resting.
Pros:
  • reliability
Cons:
  • None
Best Used for:
  • going Prone or Bench Resting
Would recommend: Yes
Was it helpful to you? Yes | No

Magpul pmag gen 3

by Smitty1986, Verified Owner from MI, United States Written on December 17, 2025
Mags came pretty quick within a week... are easy to load no malfunctions and work great... will be buying more for my 5.56 and .300 blackout
Would recommend: Yes
Was it helpful to you? Yes | No

20 round P-Mags

by KL, Verified Owner from GA, United States Written on July 8, 2025
Love these due to work better for BR than 30 round mags due to length.Plus bullets last longer on range day. Use in my Mk12 SPR 18 inch.
Pros:
  • length
  • Magpul brand
Cons:
  • None
Best Used for:
  • Bench rest shooting and probably hunting
Would recommend: Yes
Was it helpful to you? Yes | No

20 round mags

by Tex, Verified Owner from TN, United States Written on May 1, 2025
Works better if shooting off a bench than the 30 rounders.
Would recommend: Yes
Was it helpful to you? Yes | No
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