Magpul PMAG 20 LR/SR GEN M3
Compact 20-round version of the PMAG SR-25 pattern magazine
- Price
- $22
- Weight
- 6 oz
- Brand
- Magpul
- Category
- Magazines
Featured in
Features
- •20 rounds
- •.308 Win / 7.62 NATO / 6.5 Creedmoor
- •SR-25 pattern
- •Lower profile for prone shooting
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Magpul Industries PMAG GEN M3 AR-10/M110/SR25 Rifle Magazine .308 Win/7.62x51mm NATO 20 Round Black 1 Pack Polymer MGMPI291BLK-20RD
Price History
90-day low $21.99More AR-15 guides & articles
Guides
Overview
The Magpul PMAG 20 LR/SR GEN M3 is the lower-profile sibling to the PMAG 25, designed for shooters who prioritize prone position clearance and bench fitment over capacity. It uses identical SR-25 / DPMS Gen 1 fitment and the same four-way anti-tilt follower as the 25-round version.
For DMR work, precision rifle competition, and any setup where you regularly shoot prone off a bipod, the 20-round body is roughly an inch shorter than the 25-round body. That extra clearance prevents the magazine from forcing the rifle into an awkward elevated angle, which matters more than capacity in those roles.
Most AR-10 owners run a mix: PMAG 25s in tactical and range loadouts, PMAG 20s in DMR and precision setups. At the same $22 price point, picking the right capacity for the role costs nothing.
Key Features
- 20-round capacity for .308 Win / 7.62x51 NATO / 6.5 Creedmoor
- Identical SR-25 / DPMS pattern fitment as the PMAG 25
- Roughly 1.4 inches shorter than the PMAG 25 for prone clearance
- Steel-reinforced feed lips with four-way anti-tilt polymer follower
- Stainless steel spring designed for long-term loaded storage
- Removable floorplate for inspection and cleaning
Pros
- +Shorter profile clears bench and prone positions cleanly
- +Same proven internals as the standard PMAG 25
- +Same price as the higher-capacity version
- +Wide AR-10 compatibility across SR-25 / DPMS pattern rifles
Cons
- −5 rounds less capacity than the PMAG 25 for the same dollar
- −Black only
- −Does not fit AR-15 lowers or true Armalite AR-10 mag wells
Detailed Specifications
- capacity
- 20 rounds
- caliber
- .308 Win / 7.62x51 NATO / 6.5 Creedmoor / .243 Win
- pattern
- SR-25 / DPMS Gen 1
- Material
- Impact- and crush-resistant polymer
- follower
- Four-way anti-tilt, self-lubricating
- spring
- Stainless steel, USGI-spec
- weight
- 6.0 oz (empty)
- Length
- 9.6 inches
- countryOfOrigin
- USA
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Add the Magpul PMAG 20 LR/SR GEN M3 to your build and see how it enhances your platform.